\n
Wilfried-Wurth-Preis des DESY-Wissenschaftsrats <\/h3>\n\n\n\n PD Dr . Lukas Bruder<\/strong>\nPressemitteilung Desy<\/a><\/li>\n<\/ul>\n<\/div>\n\t\t\t
\n\t\t\t\t\n\t<\/title>\n<linearGradient\n\tid=\"Xd7ahjDbqH\"\n\tx1=\"50%\" y1=\"100%\"\n\tx2=\"50%\" y2=\"0%\">\n\t<stop\n\t\toffset=\"0%\"\n\t\tstop-color=\"#ffffff\"\n\t\tstop-opacity=\"1\" \/>\n\t<stop\n\t\toffset=\"100%\"\n\t\tstop-color=\"#ffffff\"\n\t\tstop-opacity=\"1\" \/>\n<\/linearGradient>\n\t<path\n\t\td=\"m62.35.7c-.14,16.95-13.84,30.75-30.57,30.86-.05,0-.51,0-.56,0,.07,0,.54,0,.61,0,16.71.13,30.38,13.93,30.52,30.86v.21s-.2,0-.2,0c-16.62,0-30.27-13.55-30.72-30.29-.45,16.74-14.09,30.28-30.72,30.29h-.2v-.21c.14-17,13.92-30.83,30.72-30.86C14.43,31.53.65,17.7.51.7v-.2s.2,0,.2,0c16.52,0,30.11,13.38,30.71,29.98,0,.1,0,1.81,0,1.91,0-.09,0-1.78,0-1.87C32.02,13.9,45.61.51,62.15.5h.2v.2\"\n\t\tstroke-width=\"2px\"\n\t\tvector-effect=\"non-scaling-stroke\"\n\t\tstroke=\"url(#Xd7ahjDbqH)\"\/>\n<\/svg>\n<svg\n\twidth=\"100%\"\n\tviewBox=\"0 0 62.85 63.12\"\n\tfill=\"none\"\n\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"\"\n\tclass=\"bl-relative bl-hidden dark:bl-block bl-w-full\"\n\trole=\"img\">\n\t<title><\/title>\n<linearGradient\n\tid=\"6Y2PxJqfzB\"\n\tx1=\"50%\" y1=\"100%\"\n\tx2=\"50%\" y2=\"0%\">\n\t<stop\n\t\toffset=\"0%\"\n\t\tstop-color=\"#000149\"\n\t\tstop-opacity=\"1\" \/>\n\t<stop\n\t\toffset=\"100%\"\n\t\tstop-color=\"#000149\"\n\t\tstop-opacity=\"1\" \/>\n<\/linearGradient>\n\t<path\n\t\td=\"m62.35.7c-.14,16.95-13.84,30.75-30.57,30.86-.05,0-.51,0-.56,0,.07,0,.54,0,.61,0,16.71.13,30.38,13.93,30.52,30.86v.21s-.2,0-.2,0c-16.62,0-30.27-13.55-30.72-30.29-.45,16.74-14.09,30.28-30.72,30.29h-.2v-.21c.14-17,13.92-30.83,30.72-30.86C14.43,31.53.65,17.7.51.7v-.2s.2,0,.2,0c16.52,0,30.11,13.38,30.71,29.98,0,.1,0,1.81,0,1.91,0-.09,0-1.78,0-1.87C32.02,13.9,45.61.51,62.15.5h.2v.2\"\n\t\tstroke-width=\"2px\"\n\t\tvector-effect=\"non-scaling-stroke\"\n\t\tstroke=\"url(#6Y2PxJqfzB)\"\/>\n<\/svg>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\n\n\n<div style=\"height:70px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-identity-darkblue bl-text-pure-white dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] align wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<h2 class=\"wp-block-heading\">2025<\/h2>\n\n\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-pure-white bl-text-identity-black dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Preis f\u00fcr exzellente Promotionsbetreuung<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Dr. Ulrich Parzefall<\/strong><br>Mit dem Preis f\u00fcr exzellente Promotionsbetreuung w\u00fcrdigt die Universit\u00e4t Freiburg das herausragende Engagement von Betreuer*innen. Er wurde 2025 zum zweiten Mal verliehen und ist mit 2000 Euro dotiert.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/uni-freiburg.de\/orientierung-im-wandel-geben\/#Preis-f%C3%BCr-exzellente-Promotionsbetreuung-2\" data-type=\"link\" data-id=\"https:\/\/uni-freiburg.de\/orientierung-im-wandel-geben\/#Preis-f%C3%BCr-exzellente-Promotionsbetreuung-2\" target=\"_blank\" rel=\"noreferrer noopener\">Mitteilung Uni Freiburg<\/a><\/li>\n<\/ul>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/circle_logo-1024x1024.jpg\" alt=\"\" class=\"wp-image-1455 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/circle_logo-1024x1024.jpg 1024w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/circle_logo-300x300.jpg 300w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/circle_logo-150x150.jpg 150w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/circle_logo-768x768.jpg 768w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/circle_logo-1536x1536.jpg 1536w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/circle_logo.jpg 2000w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\t\t\t<div class=\"bl-absolute bl-inset-0 bl-w-full bl-h-full bl-pointer-events-none bl-mt-0\">\n\t\t\t<div\n\t\t\tclass=\"bl-absolute bl-origin-center\n\t\t\t\tbl-w-80\t\t\t\tbl-left-0 bl-top-[50%] -bl-translate-y-[50%] -bl-translate-x-[50%]\t\t\t\t\">\n\t\t\t\t<svg\n\twidth=\"100%\"\n\tviewBox=\"0 0 52.31 60.32\"\n\tfill=\"none\"\n\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"\"\n\tclass=\"bl-relative bl-block dark:bl-hidden bl-w-full\"\n\trole=\"img\">\n\t<title><\/title>\n<linearGradient\n\tid=\"z6YA1LncNj\"\n\tx1=\"50%\" y1=\"100%\"\n\tx2=\"50%\" y2=\"0%\">\n\t<stop\n\t\toffset=\"0%\"\n\t\tstop-color=\"#edf0fa\"\n\t\tstop-opacity=\"1\" \/>\n\t<stop\n\t\toffset=\"100%\"\n\t\tstop-color=\"#edf0fa\"\n\t\tstop-opacity=\"0\" \/>\n<\/linearGradient>\n\t<path\n\t\td=\"m26.15,59.82h0C11.99,59.82.5,48.33.5,34.16V.5h51.31v33.66c0,14.17-11.49,25.65-25.65,25.65\"\n\t\tstroke-width=\"2px\"\n\t\tvector-effect=\"non-scaling-stroke\"\n\t\tfill=\"url(#z6YA1LncNj)\" \/>\n<\/svg>\n<svg\n\twidth=\"100%\"\n\tviewBox=\"0 0 52.31 60.32\"\n\tfill=\"none\"\n\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"\"\n\tclass=\"bl-relative bl-hidden dark:bl-block bl-w-full\"\n\trole=\"img\">\n\t<title><\/title>\n<linearGradient\n\tid=\"zYeNxg3p5t\"\n\tx1=\"50%\" y1=\"100%\"\n\tx2=\"50%\" y2=\"0%\">\n\t<stop\n\t\toffset=\"0%\"\n\t\tstop-color=\"#34499a\"\n\t\tstop-opacity=\"1\" \/>\n\t<stop\n\t\toffset=\"100%\"\n\t\tstop-color=\"#34499a\"\n\t\tstop-opacity=\"0\" \/>\n<\/linearGradient>\n\t<path\n\t\td=\"m26.15,59.82h0C11.99,59.82.5,48.33.5,34.16V.5h51.31v33.66c0,14.17-11.49,25.65-25.65,25.65\"\n\t\tstroke-width=\"2px\"\n\t\tvector-effect=\"non-scaling-stroke\"\n\t\tfill=\"url(#zYeNxg3p5t)\" \/>\n<\/svg>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-pure-white bl-text-identity-black dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Bernstein-CorTec-Preis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Christian Follert<\/strong><br>erh\u00e4lt f\u00fcr seine Masterarbeit „Associative memory in self-organizing neuronal networks“ den Bernstein-CorTec-Preis f\u00fcr hervorragende wissenschaftliche Leistungen in einem f\u00fcr Computational Neuroscience und Neurotechnologie relevanten Thema.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Betreuer: Prof. Dr. Stefan Rotter, Bernstein Center Freiburg<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/uni-freiburg.de\/universitaet\/herausragende-leistungen\/freiburger-foerderpreise-fuer-wissenschaftlerinnen-in-fruehen-karrierephasen\/foerderpreise-der-fakultaet-fuer-mathematik-und-physik\/#Bernstein-CorTec-Preis\" data-type=\"link\" data-id=\"https:\/\/uni-freiburg.de\/universitaet\/herausragende-leistungen\/freiburger-foerderpreise-fuer-wissenschaftlerinnen-in-fruehen-karrierephasen\/foerderpreise-der-fakultaet-fuer-mathematik-und-physik\/#Bernstein-CorTec-Preis\" target=\"_blank\" rel=\"noreferrer noopener\">Mitteilung Uni Freiburg<\/a><\/li>\n<\/ul>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_25_Follert-768x1024.jpg\" alt=\"\" class=\"wp-image-2166 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_25_Follert-768x1024.jpg 768w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_25_Follert-225x300.jpg 225w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_25_Follert-1152x1536.jpg 1152w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_25_Follert.jpg 1536w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><\/figure><\/div>\n\n\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-identity-lightblue bl-text-identity-black dark:bl-bg-identity-blue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Thomas Bayes-Nachwuchsf\u00f6rderpreis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Dr. Franz-Georg Wieland<\/strong><br>f\u00fcr seine Doktorarbeit „Modelling complex and dynamical phenomena of systems biology, systems medicine, and sports science“ erh\u00e4lt Franz-Georg Wieland den mit 5000 Euro dotierten Thomas Bayes-Nachwuchsf\u00f6rderpreis.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/uni-freiburg.de\/universitaet\/herausragende-leistungen\/freiburger-foerderpreise-fuer-wissenschaftlerinnen-in-fruehen-karrierephasen\/foerderpreise-der-fakultaet-fuer-mathematik-und-physik\/#Thomas-Bayes-Nachwuchsf%C3%B6rderpreis\" data-type=\"link\" data-id=\"https:\/\/uni-freiburg.de\/universitaet\/herausragende-leistungen\/freiburger-foerderpreise-fuer-wissenschaftlerinnen-in-fruehen-karrierephasen\/foerderpreise-der-fakultaet-fuer-mathematik-und-physik\/#Thomas-Bayes-Nachwuchsf%C3%B6rderpreis\" target=\"_blank\" rel=\"noreferrer noopener\">Mitteilung Uni Freiburg<\/a><\/li>\n<\/ul>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"639\" height=\"761\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Wieland.jpg\" alt=\"\" class=\"wp-image-1937 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Wieland.jpg 639w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Wieland-252x300.jpg 252w\" sizes=\"auto, (max-width: 639px) 100vw, 639px\" \/><\/figure><\/div>\n\n\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-pure-white bl-text-identity-black dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">ERC Advanced Grant<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PD Dr. Petri K\u00e4pyl\u00e4<\/strong><br>f\u00fcr seine Arbeit am am Institut f\u00fcr Sonnenphysik (KIS) in Freiburg erh\u00e4lt Petri K\u00e4pyl\u00e4 eine F\u00f6rderung von 2,5 Millionen Euro vom Europ\u00e4ischen Forschungsrat. K\u00e4pyl\u00e4 befasst sich in dem Projekt \u201eNeoCon\u201c mit Konvektion, also der Fl\u00fcssigkeitsbewegung in den \u00e4u\u00dferen Teilen der Sonne. Ziel ist die Entwicklung eines von der Sonnenbeobachtung inspirierten Modells der Teilgitter-Skalierung, das die Auswirkungen der Oberfl\u00e4chenabk\u00fchlung in globale Simulationen einbezieht und es Forschenden so erm\u00f6glicht, realistische Modelle von Sternen zu erstellen.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/uni-freiburg.de\/petri-kaepylae-wirbt-erc-advanced-grant-ein\/\" data-type=\"link\" data-id=\"https:\/\/uni-freiburg.de\/petri-kaepylae-wirbt-erc-advanced-grant-ein\/\" target=\"_blank\" rel=\"noreferrer noopener\">Pressemitteilung Uni Freiburg<\/a><\/li>\n<\/ul>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"280\" height=\"250\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/logo_kis.png\" alt=\"\" class=\"wp-image-1244 size-full\" \/><\/figure><\/div>\n\n\t\t\t<div class=\"bl-absolute bl-inset-0 bl-w-full bl-h-full bl-pointer-events-none bl-mt-0\">\n\t\t\t<div\n\t\t\tclass=\"bl-absolute bl-origin-center\n\t\t\t\tbl-w-80\t\t\t\tbl-left-0 -bl-translate-x-[50%] bl-top-[calc(100%\/6)] -bl-translate-y-[50%]\t\t\t\t\">\n\t\t\t\t<svg\n\twidth=\"100%\"\n\tviewBox=\"0 0 52.31 60.32\"\n\tfill=\"none\"\n\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"\"\n\tclass=\"bl-relative bl-block dark:bl-hidden bl-w-full\"\n\trole=\"img\">\n\t<title><\/title>\n<linearGradient\n\tid=\"2laK7GBwn5\"\n\tx1=\"50%\" y1=\"100%\"\n\tx2=\"50%\" y2=\"0%\">\n\t<stop\n\t\toffset=\"0%\"\n\t\tstop-color=\"#edf0fa\"\n\t\tstop-opacity=\"1\" \/>\n\t<stop\n\t\toffset=\"100%\"\n\t\tstop-color=\"#edf0fa\"\n\t\tstop-opacity=\"0\" \/>\n<\/linearGradient>\n\t<path\n\t\td=\"m26.15,59.82h0C11.99,59.82.5,48.33.5,34.16V.5h51.31v33.66c0,14.17-11.49,25.65-25.65,25.65\"\n\t\tstroke-width=\"2px\"\n\t\tvector-effect=\"non-scaling-stroke\"\n\t\tfill=\"url(#2laK7GBwn5)\" \/>\n<\/svg>\n<svg\n\twidth=\"100%\"\n\tviewBox=\"0 0 52.31 60.32\"\n\tfill=\"none\"\n\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"\"\n\tclass=\"bl-relative bl-hidden dark:bl-block bl-w-full\"\n\trole=\"img\">\n\t<title><\/title>\n<linearGradient\n\tid=\"d8hAIoeRSW\"\n\tx1=\"50%\" y1=\"100%\"\n\tx2=\"50%\" y2=\"0%\">\n\t<stop\n\t\toffset=\"0%\"\n\t\tstop-color=\"#34499a\"\n\t\tstop-opacity=\"1\" \/>\n\t<stop\n\t\toffset=\"100%\"\n\t\tstop-color=\"#34499a\"\n\t\tstop-opacity=\"0\" \/>\n<\/linearGradient>\n\t<path\n\t\td=\"m26.15,59.82h0C11.99,59.82.5,48.33.5,34.16V.5h51.31v33.66c0,14.17-11.49,25.65-25.65,25.65\"\n\t\tstroke-width=\"2px\"\n\t\tvector-effect=\"non-scaling-stroke\"\n\t\tfill=\"url(#d8hAIoeRSW)\" \/>\n<\/svg>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-identity-lightblue bl-text-identity-black dark:bl-bg-identity-lightblue dark:bl-text-identity-black bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">ERC Advanced Grant<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Prof. Dr . Michael Moseler<\/strong><br>f\u00fcr seine Arbeit am Fraunhofer-Institut f\u00fcr Werkstoffmechanik IWM erh\u00e4lt Michael Moseler eine F\u00f6rderung von 2,5 Millionen Euro vom Europ\u00e4ischen Forschungsrat. Moseler widmet sich in dem Projekt der Erforschung und Entwicklung eines digitalen Zwillings f\u00fcr geschmierte Reibkontakte. Ziel ist eine h\u00f6here Energieeffizienz in Maschinen, Ger\u00e4ten und Fahrzeugen.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/uni-freiburg.de\/michael-moseler-wirbt-erc-advanced-grant-ein\/\" data-type=\"link\" data-id=\"https:\/\/uni-freiburg.de\/michael-moseler-wirbt-erc-advanced-grant-ein\/\" target=\"_blank\" rel=\"noreferrer noopener\">Pressemitteilung Uni Freiburg<\/a><\/li>\n<\/ul>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"733\" height=\"1024\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Moseler_FMF.jpg\" alt=\"\" class=\"wp-image-1140 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Moseler_FMF.jpg 733w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Moseler_FMF-215x300.jpg 215w\" sizes=\"auto, (max-width: 733px) 100vw, 733px\" \/><\/figure><\/div>\n\n\t\t\t<div class=\"bl-absolute bl-inset-0 bl-w-full bl-h-full bl-pointer-events-none bl-mt-0\">\n\t\t\t<div\n\t\t\tclass=\"bl-absolute bl-origin-center\n\t\t\t\tbl-w-80\t\t\t\tbl-left-0 -bl-translate-x-[50%] bl-top-[calc(100%\/6)] -bl-translate-y-[50%]\t\t\t\t\">\n\t\t\t\t<svg\n\twidth=\"100%\"\n\tviewBox=\"0 0 52.31 60.32\"\n\tfill=\"none\"\n\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"\"\n\tclass=\"bl-relative bl-block dark:bl-hidden bl-w-full\"\n\trole=\"img\">\n\t<title><\/title>\n<linearGradient\n\tid=\"Xd8ckm3TNg\"\n\tx1=\"50%\" y1=\"100%\"\n\tx2=\"50%\" y2=\"0%\">\n\t<stop\n\t\toffset=\"0%\"\n\t\tstop-color=\"#ffffff\"\n\t\tstop-opacity=\"1\" \/>\n\t<stop\n\t\toffset=\"100%\"\n\t\tstop-color=\"#ffffff\"\n\t\tstop-opacity=\"0\" \/>\n<\/linearGradient>\n\t<path\n\t\td=\"m26.15,59.82h0C11.99,59.82.5,48.33.5,34.16V.5h51.31v33.66c0,14.17-11.49,25.65-25.65,25.65\"\n\t\tstroke-width=\"2px\"\n\t\tvector-effect=\"non-scaling-stroke\"\n\t\tfill=\"url(#Xd8ckm3TNg)\" \/>\n<\/svg>\n<svg\n\twidth=\"100%\"\n\tviewBox=\"0 0 52.31 60.32\"\n\tfill=\"none\"\n\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"\"\n\tclass=\"bl-relative bl-hidden dark:bl-block bl-w-full\"\n\trole=\"img\">\n\t<title><\/title>\n<linearGradient\n\tid=\"h2Kygsqtek\"\n\tx1=\"50%\" y1=\"100%\"\n\tx2=\"50%\" y2=\"0%\">\n\t<stop\n\t\toffset=\"0%\"\n\t\tstop-color=\"#000149\"\n\t\tstop-opacity=\"1\" \/>\n\t<stop\n\t\toffset=\"100%\"\n\t\tstop-color=\"#000149\"\n\t\tstop-opacity=\"0\" \/>\n<\/linearGradient>\n\t<path\n\t\td=\"m26.15,59.82h0C11.99,59.82.5,48.33.5,34.16V.5h51.31v33.66c0,14.17-11.49,25.65-25.65,25.65\"\n\t\tstroke-width=\"2px\"\n\t\tvector-effect=\"non-scaling-stroke\"\n\t\tfill=\"url(#h2Kygsqtek)\" \/>\n<\/svg>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-pure-white bl-text-identity-black dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Alumni-Preis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nele Dethloff<\/strong><br>Masterarbeit: „Decoding Protein Dynamics – Dimensionality Reduction and Generative Modeling via Autoencoders“<\/p>\n\n\n<div class=\"bl-group\/detailswrapper wp-block-ufr-details\" aria-expanded=\"false\" data-block-id=\"f62f98c9-8295-45ec-b301-f75e6664eadc\">\n\t<button\n\t\tdata-block-id=\"f62f98c9-8295-45ec-b301-f75e6664eadc\"\n\t\tdata-role=\"open-button\"\n\t\tid=\"f62f98c9-8295-45ec-b301-f75e6664eadc-open-button\"\n\t\taria-controls=\"f62f98c9-8295-45ec-b301-f75e6664eadc-content\"\n\t\tclass=\"bl-group\/detailsbutton bl-flex bl-items-center bl-mb-4 bl-cursor-pointer bl-text-inherit\n\t\t\thover:bl-text-identity-blue-80 active:bl-text-identity-blue bl-outline-identity-black\t\t\tdark:hover:bl-text-identity-yellow-60 dark:active:bl-text-identity-yellow dark:bl-outline-pure-white\t\t\tbl-transition-colors bl-duration-[400ms] !bl-outline-2 focus-visible:!bl-outline-dotted !bl-outline-offset-[6px]\">\n\t\t\n\t\t<svg width=\"24\" height=\"17\" viewBox=\"0 0 24 17\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"chevron-down\" class=\"bl-flex-shrink-0 bl-w-6 bl-text-inherit bl-rotate-180 print:bl-rotate-0 group-aria-expanded\/detailswrapper:bl-rotate-0 bl-me-3\" role=\"img\">\n\t<title>chevron-down<\/title>\n\t<path d=\"M12.0001 8.57706L4.28662 16.5242L-1.81865e-07 12.3636L12.0001 -4.43936e-05L24 12.3636L19.7133 16.5241L12.0001 8.57706Z\" fill=\"currentColor\"\/>\n<\/svg>\n\n\t\t<span class=\"bl-flex bl-items-center bl-flex-grow bl-m-0 bl-p-0 bl-text-start bl-min-h-11 group-hover\/detailsbutton:bl-underline bl-underline-offset-[6px] bl-decoration-[2px] xl:bl-decoration-[3px]\">\n\t\t\t\t\t\tmehr\t\t<\/span>\n\t<\/button>\n\t<div\n\t\tid=\"f62f98c9-8295-45ec-b301-f75e6664eadc-content\"\n\t\taria-labelledby=\"f62f98c9-8295-45ec-b301-f75e6664eadc-open-button\"\n\t\tclass=\"bl-hidden print:bl-block group-aria-expanded\/detailswrapper:bl-block is-layout-flow\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\"><strong>Betreuer:<\/strong> Prof. Dr. Gerhard Stock<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Abstract:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Molecular dynamics simulations are an important method to understand fundamental processes of protein dynamics by providing a detailed spatiotemporal description in terms of Cartesian coordinates of each atom. This high-dimensional data poses challenges in extracting the relevant information. Therefore, dimensionality reduction methods are used to transform the essential information of a system into a low-dimensional representation that captures the most relevant dynamics. The resulting free energy landscapes allow for an easy understanding of the underlying physics as it helps to find pathways, state models, or transition states.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this thesis, we investigate autoencoder methods for dimensionality reduction that go beyond well-established linear methods such as principal component analysis. These methods can recognize non-linear and, in parts, temporal relationships and furthermore enable generative modeling. To this end, we study the dynamics of the protein models Ala2, Aib9, and T4 lysozyme. Their different size and dynamical behavior place different demands on the architecture and mathematical formulation of the models. We find that these variations of the model architecture focus on different aspects of the free energy landscape of the systems. Moreover, we discuss various issues of the training process including the instability and the large number of parameters of the models. We show that the use of graph-based networks is advantageous for processing molecular dynamics data in autoencoders because a graph can be seen as a natural representation of a protein. Since the model knows about the protein structure when using a graph, this results in a better estimate of the free energy landscape and adds robustness to the model. Additionally, we follow a new direction by applying a model that incorporates temporal dependencies into the dimensionality reduction.<\/p>\n\n\t<\/div>\n<\/div>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"623\" height=\"800\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/alumni25_Dethloff.jpg\" alt=\"\" class=\"wp-image-1716 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/alumni25_Dethloff.jpg 623w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/alumni25_Dethloff-234x300.jpg 234w\" sizes=\"auto, (max-width: 623px) 100vw, 623px\" \/><\/figure><\/div>\n\n\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-pure-white bl-text-identity-black dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Alumni-Preis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Selina Machnitzky<\/strong><br>Masterarbeit: „Constraints on Cannibal Dark Matter from Structure Formation“<\/p>\n\n\n<div class=\"bl-group\/detailswrapper wp-block-ufr-details\" aria-expanded=\"false\" data-block-id=\"0f96e8ce-048c-4512-b3d4-2696de70f63e\">\n\t<button\n\t\tdata-block-id=\"0f96e8ce-048c-4512-b3d4-2696de70f63e\"\n\t\tdata-role=\"open-button\"\n\t\tid=\"0f96e8ce-048c-4512-b3d4-2696de70f63e-open-button\"\n\t\taria-controls=\"0f96e8ce-048c-4512-b3d4-2696de70f63e-content\"\n\t\tclass=\"bl-group\/detailsbutton bl-flex bl-items-center bl-mb-4 bl-cursor-pointer bl-text-inherit\n\t\t\thover:bl-text-identity-blue-80 active:bl-text-identity-blue bl-outline-identity-black\t\t\tdark:hover:bl-text-identity-yellow-60 dark:active:bl-text-identity-yellow dark:bl-outline-pure-white\t\t\tbl-transition-colors bl-duration-[400ms] !bl-outline-2 focus-visible:!bl-outline-dotted !bl-outline-offset-[6px]\">\n\t\t\n\t\t<svg width=\"24\" height=\"17\" viewBox=\"0 0 24 17\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"chevron-down\" class=\"bl-flex-shrink-0 bl-w-6 bl-text-inherit bl-rotate-180 print:bl-rotate-0 group-aria-expanded\/detailswrapper:bl-rotate-0 bl-me-3\" role=\"img\">\n\t<title>chevron-down<\/title>\n\t<path d=\"M12.0001 8.57706L4.28662 16.5242L-1.81865e-07 12.3636L12.0001 -4.43936e-05L24 12.3636L19.7133 16.5241L12.0001 8.57706Z\" fill=\"currentColor\"\/>\n<\/svg>\n\n\t\t<span class=\"bl-flex bl-items-center bl-flex-grow bl-m-0 bl-p-0 bl-text-start bl-min-h-11 group-hover\/detailsbutton:bl-underline bl-underline-offset-[6px] bl-decoration-[2px] xl:bl-decoration-[3px]\">\n\t\t\t\t\t\tmehr\t\t<\/span>\n\t<\/button>\n\t<div\n\t\tid=\"0f96e8ce-048c-4512-b3d4-2696de70f63e-content\"\n\t\taria-labelledby=\"0f96e8ce-048c-4512-b3d4-2696de70f63e-open-button\"\n\t\tclass=\"bl-hidden print:bl-block group-aria-expanded\/detailswrapper:bl-block is-layout-flow\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\"><strong>Betreuer:<\/strong> Jun.-Prof. Dr. Stefan Vogl<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Abstract:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Seit Jahrzehnten beobachten wir im Universum Ph\u00e4nomene, die sich mit sichtbarer Materie allein nicht erkl\u00e4ren lassen – zum Beispiel die Rotationsgeschwindigkeit von Materie in Spiralgalaxien, die St\u00e4rke von Gravitationslinseneffekten oder die Strukturen im kosmischen Mikrowellenhintergrund. Um diese Beobachtungen zu verstehen, nehmen wir an, dass es eine bislang unbekannte Form von Materie gibt: Dunkle Materie. Sie ist nicht direkt sichtbar, da sie nicht elektromagnetisch wechselwirkt, beeinflusst aber \u00fcber ihre Gravitation die Entwicklung des gesamten Kosmos. Heute gehen wir davon aus, dass etwa 27\u202f% der Energie- und Materiedichte des Universums aus Dunkler Materie bestehen – mehr als f\u00fcnfmal so viel wie die bekannte, gew\u00f6hnliche Materie.\n<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In dieser Masterarbeit untersuchen wir die M\u00f6glichkeit, dass Dunkle Materie sehr stark mit sich selbst wechselwirkt – so stark, dass im fr\u00fchen, dichten Universum mehrere dieser Teilchen zu weniger, aber daf\u00fcr energiereicheren Dunkle-Materie-Teilchen annihilieren. Da sich diese Teilchen im fr\u00fchen Universum gegenseitig \u201eauffressen\u201c, nennt man diesen Kandidaten kannibalistische Dunkle Materie. Dieser \u201eKannibalismus\u201c bewirkt, dass sich die Dunkle Materie im fr\u00fchen Universum nur langsam abk\u00fchlt und \u00fcber l\u00e4ngere Zeitr\u00e4ume hinweg eine h\u00f6here Temperatur und Beweglichkeit aufweist als andere Dunkle-Materie-Kandidaten, wodurch das Wachstum kleinerer Strukturen unterdr\u00fcckt wird. Dadurch kann kannibalistische Dunkle Materie die beobachtete Unterdr\u00fcckung kleiner Strukturen im Universum erkl\u00e4ren – allerdings nur, wenn diese Unterdr\u00fcckung im Rahmen der pr\u00e4zisen Beobachtungen des sogenannten Lyman-\u03b1-Walds bleibt. Der Lyman-\u03b1-Wald beschreibt eine Reihe von Absorptionslinien, die im Spektrum weit entfernter Quasare – sehr heller, aktiver Galaxienkerne – zu sehen sind. Bevor das Licht dieser Quasare die Erde erreicht, durchquert es Wasserstoffwolken im fr\u00fchen Universum. Photonen mit genau der richtigen Energie werden dabei vom Wasserstoff absorbiert. Zusammen mit der Rotverschiebung der Photonen im expandierenden Universum liefern diese Beobachtungen eine Art 1D-Karte der Materieverteilung entlang der Sichtlinie und sind daher ein \u00e4u\u00dferst sensibles Werkzeug, um die Strukturbildung im fr\u00fchen Universum zu untersuchen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Durch den Vergleich der durch kannibalistische Dunkle Materie vorhergesagten Unterdr\u00fcckung kleiner Strukturen mit den tats\u00e4chlichen Beobachtungen sowie unter Ber\u00fccksichtigung der gesamten gemessenen Energiedichte der Dunklen Materie k\u00f6nnen wir den m\u00f6glichen Parameterraum f\u00fcr kannibalistische Dunkle Materie deutlich einschr\u00e4nken. Wir finden strenge untere Grenzen f\u00fcr die Masse dieser Teilchen im Bereich von etwa 10 bis 100 keV je nach angenommener St\u00e4rke der Selbstkopplung.<\/p>\n\n\t<\/div>\n<\/div>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"622\" height=\"800\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/alumni25_Machnitzky.jpg\" alt=\"\" class=\"wp-image-1717 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/alumni25_Machnitzky.jpg 622w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/alumni25_Machnitzky-233x300.jpg 233w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\" \/><\/figure><\/div>\n\n\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-pure-white bl-text-identity-black dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Alumni-Preis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Leonie Katharina Werner<\/strong><br>Masterarbeit: „A novel action-detection scheme for wave packet interferometry of organic molecules in helium nanodroplets“<\/p>\n\n\n<div class=\"bl-group\/detailswrapper wp-block-ufr-details\" aria-expanded=\"false\" data-block-id=\"de50a2a9-d6d6-42d0-834c-0352cc00ece6\">\n\t<button\n\t\tdata-block-id=\"de50a2a9-d6d6-42d0-834c-0352cc00ece6\"\n\t\tdata-role=\"open-button\"\n\t\tid=\"de50a2a9-d6d6-42d0-834c-0352cc00ece6-open-button\"\n\t\taria-controls=\"de50a2a9-d6d6-42d0-834c-0352cc00ece6-content\"\n\t\tclass=\"bl-group\/detailsbutton bl-flex bl-items-center bl-mb-4 bl-cursor-pointer bl-text-inherit\n\t\t\thover:bl-text-identity-blue-80 active:bl-text-identity-blue bl-outline-identity-black\t\t\tdark:hover:bl-text-identity-yellow-60 dark:active:bl-text-identity-yellow dark:bl-outline-pure-white\t\t\tbl-transition-colors bl-duration-[400ms] !bl-outline-2 focus-visible:!bl-outline-dotted !bl-outline-offset-[6px]\">\n\t\t\n\t\t<svg width=\"24\" height=\"17\" viewBox=\"0 0 24 17\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"chevron-down\" class=\"bl-flex-shrink-0 bl-w-6 bl-text-inherit bl-rotate-180 print:bl-rotate-0 group-aria-expanded\/detailswrapper:bl-rotate-0 bl-me-3\" role=\"img\">\n\t<title>chevron-down<\/title>\n\t<path d=\"M12.0001 8.57706L4.28662 16.5242L-1.81865e-07 12.3636L12.0001 -4.43936e-05L24 12.3636L19.7133 16.5241L12.0001 8.57706Z\" fill=\"currentColor\"\/>\n<\/svg>\n\n\t\t<span class=\"bl-flex bl-items-center bl-flex-grow bl-m-0 bl-p-0 bl-text-start bl-min-h-11 group-hover\/detailsbutton:bl-underline bl-underline-offset-[6px] bl-decoration-[2px] xl:bl-decoration-[3px]\">\n\t\t\t\t\t\tmehr\t\t<\/span>\n\t<\/button>\n\t<div\n\t\tid=\"de50a2a9-d6d6-42d0-834c-0352cc00ece6-content\"\n\t\taria-labelledby=\"de50a2a9-d6d6-42d0-834c-0352cc00ece6-open-button\"\n\t\tclass=\"bl-hidden print:bl-block group-aria-expanded\/detailswrapper:bl-block is-layout-flow\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\"><strong>Betreuer:<\/strong> PD Dr. Lukas Bruder<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Abstract:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A large proportion of photochemical processes in organic molecules happen non-radiatively, hence, it is of particular interest to develop experimental techniques that enable their investigation. Photoelectron spectroscopy is well-suited for probing non-radiative transitions. However, to date, the majority of photoelectron spectroscopy is conducted in the gas phase. Thus, the influence of an environment on the molecular dynamics is not considered. Embedding the molecule in helium nanodroplets enables the investigation of interaction dynamics between the dopant and the droplet. Helium nanodroplets act as a weakly-perturbing testbed to investigate single molecules in the gas phase. In this work, time-resolved photoelectron experiments have been conducted with the organic molecules tetracene and the prototypical photoswitch azobenzene exploiting helium nanodroplet isolation. An increase of low kinetic energy photoelectron yield is observed for both systems upon photoexcitation that induces non-radiative transitions. Evaluation of the droplet size-dependent dynamics yields the conclusion that two processes are taking place. A superposition of helium evaporation and dopant ejection is causing the increase of low kinetic energy photoelectron yield upon excitation, due to fewer interactions with the helium environment. First measurements of utilizing the change in photoelectron signal of azobenzene-doped helium nanodroplets for wave packet interferometric measurements are feasible. Excitation spectra show broad features that can not be distinguished from the excitation laser spectrum. This points to the fact that with the chosen pump wavelength range oligomers are predominantly excited.<\/p>\n\n\t<\/div>\n<\/div>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"622\" height=\"800\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/alumni25_Werner.jpg\" alt=\"\" class=\"wp-image-1718 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/alumni25_Werner.jpg 622w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/alumni25_Werner-233x300.jpg 233w\" sizes=\"auto, (max-width: 622px) 100vw, 622px\" \/><\/figure><\/div>\n\n\t<\/div>\n\n\n\n<div style=\"height:70px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-identity-darkblue bl-text-pure-white dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] align wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<h2 class=\"wp-block-heading\">2024<\/h2>\n\n\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-pure-white bl-text-identity-black dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Komtur-Preis 2024<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nicolai G\u00f6lz<\/strong> <br>Masterarbeit „Rapid Scanning in High-Resolution Coherent Spectroscopy“<\/p>\n\n\n<div class=\"bl-group\/detailswrapper wp-block-ufr-details\" aria-expanded=\"false\" data-block-id=\"3df9bf1e-8166-4882-ace4-fc97af65b82f\">\n\t<button\n\t\tdata-block-id=\"3df9bf1e-8166-4882-ace4-fc97af65b82f\"\n\t\tdata-role=\"open-button\"\n\t\tid=\"3df9bf1e-8166-4882-ace4-fc97af65b82f-open-button\"\n\t\taria-controls=\"3df9bf1e-8166-4882-ace4-fc97af65b82f-content\"\n\t\tclass=\"bl-group\/detailsbutton bl-flex bl-items-center bl-mb-4 bl-cursor-pointer bl-text-inherit\n\t\t\thover:bl-text-identity-blue-80 active:bl-text-identity-blue bl-outline-identity-black\t\t\tdark:hover:bl-text-identity-yellow-60 dark:active:bl-text-identity-yellow dark:bl-outline-pure-white\t\t\tbl-transition-colors bl-duration-[400ms] !bl-outline-2 focus-visible:!bl-outline-dotted !bl-outline-offset-[6px]\">\n\t\t\n\t\t<svg width=\"24\" height=\"17\" viewBox=\"0 0 24 17\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"chevron-down\" class=\"bl-flex-shrink-0 bl-w-6 bl-text-inherit bl-rotate-180 print:bl-rotate-0 group-aria-expanded\/detailswrapper:bl-rotate-0 bl-me-3\" role=\"img\">\n\t<title>chevron-down<\/title>\n\t<path d=\"M12.0001 8.57706L4.28662 16.5242L-1.81865e-07 12.3636L12.0001 -4.43936e-05L24 12.3636L19.7133 16.5241L12.0001 8.57706Z\" fill=\"currentColor\"\/>\n<\/svg>\n\n\t\t<span class=\"bl-flex bl-items-center bl-flex-grow bl-m-0 bl-p-0 bl-text-start bl-min-h-11 group-hover\/detailsbutton:bl-underline bl-underline-offset-[6px] bl-decoration-[2px] xl:bl-decoration-[3px]\">\n\t\t\t\t\t\tmehr\t\t<\/span>\n\t<\/button>\n\t<div\n\t\tid=\"3df9bf1e-8166-4882-ace4-fc97af65b82f-content\"\n\t\taria-labelledby=\"3df9bf1e-8166-4882-ace4-fc97af65b82f-open-button\"\n\t\tclass=\"bl-hidden print:bl-block group-aria-expanded\/detailswrapper:bl-block is-layout-flow\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\"><strong>Betreuer:<\/strong> Prof. Dr. Frank Stienkemeier<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Abstract:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Coherent multidimensional spectroscopy (CMDS) is a powerful ultrafast spectroscopic technique to study dynamics of matter with a high spectro-temporal resolution otherwise only accessible in disjunct experiments. Extending the method to weakly perturbed molecular and cluster species in the gas phase permits very high spectral resolution [1]. Previous experiments have revealed valuable insights such as the homogeneous line profile of chromophores solvated in nanoclusters [2]. However, in this case, the attainable resolution is limited by the acquisition time. To solve this problem, a rapid scanning method, developed by the Oglivie group in 2021 [3], is implemented and extended in this thesis to inter-pulse delays in the nanosecond range. This reduces the acquisition time by up to two orders of magnitude. In addition, optical delay tracking allows the correction of non-constant delay stage speeds and movements in the interferometer, which further improves the spectral resolution of phase-modulated wave packet interferometry experiments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[1] L. Bruder et al., Nat. Commun. 9 4823 (2018).<br>[2] U. Bangert et al., Nat. Commun. 13 3350 (2022).<br>[3] D. Agathangelou et al., J. Chem. Phys. 155 094201 (2021).<\/p>\n\n\t<\/div>\n<\/div>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"861\" height=\"1024\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Goelz-861x1024.jpg\" alt=\"\" class=\"wp-image-1490 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Goelz-861x1024.jpg 861w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Goelz-252x300.jpg 252w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Goelz-768x914.jpg 768w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Goelz-1291x1536.jpg 1291w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Goelz-1722x2048.jpg 1722w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Goelz.jpg 1909w\" sizes=\"auto, (max-width: 861px) 100vw, 861px\" \/><\/figure><\/div>\n\n\t\t\t<div class=\"bl-absolute bl-inset-0 bl-w-full bl-h-full bl-pointer-events-none bl-mt-0\">\n\t\t\t<div\n\t\t\tclass=\"bl-absolute bl-origin-center\n\t\t\t\tbl-w-80\t\t\t\tbl-left-0 -bl-translate-x-[50%] bl-top-[calc(100%\/6)] -bl-translate-y-[50%]\t\t\t\t\">\n\t\t\t\t<svg\n\twidth=\"100%\"\n\tviewBox=\"0 0 52.31 60.32\"\n\tfill=\"none\"\n\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"\"\n\tclass=\"bl-relative bl-block dark:bl-hidden bl-w-full\"\n\trole=\"img\">\n\t<title><\/title>\n<linearGradient\n\tid=\"gjuvRD4aJi\"\n\tx1=\"50%\" y1=\"100%\"\n\tx2=\"50%\" y2=\"0%\">\n\t<stop\n\t\toffset=\"0%\"\n\t\tstop-color=\"#edf0fa\"\n\t\tstop-opacity=\"1\" \/>\n\t<stop\n\t\toffset=\"100%\"\n\t\tstop-color=\"#edf0fa\"\n\t\tstop-opacity=\"0\" \/>\n<\/linearGradient>\n\t<path\n\t\td=\"m26.15,59.82h0C11.99,59.82.5,48.33.5,34.16V.5h51.31v33.66c0,14.17-11.49,25.65-25.65,25.65\"\n\t\tstroke-width=\"2px\"\n\t\tvector-effect=\"non-scaling-stroke\"\n\t\tfill=\"url(#gjuvRD4aJi)\" \/>\n<\/svg>\n<svg\n\twidth=\"100%\"\n\tviewBox=\"0 0 52.31 60.32\"\n\tfill=\"none\"\n\txmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"\"\n\tclass=\"bl-relative bl-hidden dark:bl-block bl-w-full\"\n\trole=\"img\">\n\t<title><\/title>\n<linearGradient\n\tid=\"U2HmrGOonw\"\n\tx1=\"50%\" y1=\"100%\"\n\tx2=\"50%\" y2=\"0%\">\n\t<stop\n\t\toffset=\"0%\"\n\t\tstop-color=\"#34499a\"\n\t\tstop-opacity=\"1\" \/>\n\t<stop\n\t\toffset=\"100%\"\n\t\tstop-color=\"#34499a\"\n\t\tstop-opacity=\"0\" \/>\n<\/linearGradient>\n\t<path\n\t\td=\"m26.15,59.82h0C11.99,59.82.5,48.33.5,34.16V.5h51.31v33.66c0,14.17-11.49,25.65-25.65,25.65\"\n\t\tstroke-width=\"2px\"\n\t\tvector-effect=\"non-scaling-stroke\"\n\t\tfill=\"url(#U2HmrGOonw)\" \/>\n<\/svg>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-pure-white bl-text-identity-black dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Alumni-Preis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Zainab Chokr<\/strong> <br>Masterarbeit: „Analysis of learning processes in brain networks using coarse graining of graphs and spectral graph theory“<\/p>\n\n\n<div class=\"bl-group\/detailswrapper wp-block-ufr-details\" aria-expanded=\"false\" data-block-id=\"2022dbc1-8345-4461-9fd4-384fd2f21965\">\n\t<button\n\t\tdata-block-id=\"2022dbc1-8345-4461-9fd4-384fd2f21965\"\n\t\tdata-role=\"open-button\"\n\t\tid=\"2022dbc1-8345-4461-9fd4-384fd2f21965-open-button\"\n\t\taria-controls=\"2022dbc1-8345-4461-9fd4-384fd2f21965-content\"\n\t\tclass=\"bl-group\/detailsbutton bl-flex bl-items-center bl-mb-4 bl-cursor-pointer bl-text-inherit\n\t\t\thover:bl-text-identity-blue-80 active:bl-text-identity-blue bl-outline-identity-black\t\t\tdark:hover:bl-text-identity-yellow-60 dark:active:bl-text-identity-yellow dark:bl-outline-pure-white\t\t\tbl-transition-colors bl-duration-[400ms] !bl-outline-2 focus-visible:!bl-outline-dotted !bl-outline-offset-[6px]\">\n\t\t\n\t\t<svg width=\"24\" height=\"17\" viewBox=\"0 0 24 17\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"chevron-down\" class=\"bl-flex-shrink-0 bl-w-6 bl-text-inherit bl-rotate-180 print:bl-rotate-0 group-aria-expanded\/detailswrapper:bl-rotate-0 bl-me-3\" role=\"img\">\n\t<title>chevron-down<\/title>\n\t<path d=\"M12.0001 8.57706L4.28662 16.5242L-1.81865e-07 12.3636L12.0001 -4.43936e-05L24 12.3636L19.7133 16.5241L12.0001 8.57706Z\" fill=\"currentColor\"\/>\n<\/svg>\n\n\t\t<span class=\"bl-flex bl-items-center bl-flex-grow bl-m-0 bl-p-0 bl-text-start bl-min-h-11 group-hover\/detailsbutton:bl-underline bl-underline-offset-[6px] bl-decoration-[2px] xl:bl-decoration-[3px]\">\n\t\t\t\t\t\tmehr\t\t<\/span>\n\t<\/button>\n\t<div\n\t\tid=\"2022dbc1-8345-4461-9fd4-384fd2f21965-content\"\n\t\taria-labelledby=\"2022dbc1-8345-4461-9fd4-384fd2f21965-open-button\"\n\t\tclass=\"bl-hidden print:bl-block group-aria-expanded\/detailswrapper:bl-block is-layout-flow\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\"><strong>Betreuer:<\/strong> Prof. Dr. Stefan Rotter<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Abstract:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das Ziel der Neurowissenschaften ist es, Eigenschaften und Wechselwirkungen von Neuronen zu beschreiben, um kognitive F\u00e4higkeiten des Gehirns sowie Nervenkrankheiten und ihre Ursachen zu verstehen. Die Funktion des Gehirns beruht auf dem Zusammenspiel von Milliarden von Zellen mit unterschiedlichen Formen, Eigenschaften und Aufgaben. Die daraus resultierende Komplexit\u00e4t erschwert das Verst\u00e4ndnis der zugrundeliegenden Mechanismen dramatisch. Es ergibt sich die Notwendigkeit, das charakteristische Verhalten der neuronalen Netzwerke des Gehirns im Rahmen mathematischer Modelle zu untersuchen und zu verstehen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Meine Arbeit befasst sich haupts\u00e4chlich mit der F\u00e4higkeit des Gehirns zu lernen. Wie werden Erinnerungen gespeichert und wie werden sie wieder vergessen? Eine transparente Beschreibung der Selbstorganisation des Gehirns, die nach allem was wir wissen dem Lernen zugrunde liegt, soll gefunden werden. Eine solche Beschreibung habe ich im Rahmen des „gerichteten Konfigurationsmodells“ formuliert. Dieses Modell stammt aus der Graphen- und Netzwerktheorie und stellt eine anschauliche und angemessene Beschreibung der wichtigsten Bausteine des Gehirns, der Neuronen und Synapsen, dar. Diese werden als Knoten und Kanten, welche die begrenzten biologischen Ressourcen des Gehirn-Graphen darstellen, betrachtet. Nach einer strukturellen St\u00f6rung durch Stimulation entstehen durch entropische Selbstorganisation der freigesetzten Ressourcen neue Konfigurationen des Graphen, diese stellen gelernte Engramme dar. In diesem Modell sind Engramme also nichts anderes als das strukturelle Ged\u00e4chtnis des Gehirns.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Diese Selbstorganisation des Netzwerks \u201eGehirn\u201c wird mit Hilfe des Eigenwertspektrums seiner Adjazenzmatrix untersucht. Die wesentlichen Dynamiken und Informationen aus dem Netzwerk sollen herausgefiltert und die Dimension oder \u201eAufl\u00f6sung\u201c des Problems reduziert werden. Zu diesem Zweck wird eine Vergr\u00f6berungsabbildung eingef\u00fchrt und das Eigenwertspektrum der urspr\u00fcnglichen Adjazenzmatrix wird mit dem der vergr\u00f6berten Matrix verglichen. Es stellt sich heraus, dass die Anzahl und der Betrag essenzieller Eigenwerte mit der Anzahl und Intensit\u00e4t gelernter Engramme korreliert. Des Weiteren habe ich festgestellt, dass die Untersuchung der Dynamik eines sich selbstorganisierenden Netzwerks durch Betrachtung der zeitlichen \u00c4nderung der essenziellen Eigenwerte, welche mit Engrammen korrespondieren, m\u00f6glich ist. Sowohl das Modell als auch die Methode der Untersuchung durch die Vergr\u00f6berung und die Eigenwerte stellen somit vielversprechende Instrumente zu einem vertieften Verst\u00e4ndnis des Lernprozesses dar.<\/p>\n\n\t<\/div>\n<\/div>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"884\" height=\"1024\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Chokr-884x1024.jpg\" alt=\"\" class=\"wp-image-1494 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Chokr-884x1024.jpg 884w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Chokr-259x300.jpg 259w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Chokr-768x890.jpg 768w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Chokr-1326x1536.jpg 1326w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Chokr-1768x2048.jpg 1768w\" sizes=\"auto, (max-width: 884px) 100vw, 884px\" \/><\/figure><\/div>\n\n\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-pure-white bl-text-identity-black dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Alumni-Preis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Robin Grether<\/strong> <br>Masterarbeit: „Vibrational instabilities caused by current-induced forces in molecular junctions: A Semi-classical approach“<\/p>\n\n\n<div class=\"bl-group\/detailswrapper wp-block-ufr-details\" aria-expanded=\"false\" data-block-id=\"9fc418a2-7548-426a-bccf-977aa1c25055\">\n\t<button\n\t\tdata-block-id=\"9fc418a2-7548-426a-bccf-977aa1c25055\"\n\t\tdata-role=\"open-button\"\n\t\tid=\"9fc418a2-7548-426a-bccf-977aa1c25055-open-button\"\n\t\taria-controls=\"9fc418a2-7548-426a-bccf-977aa1c25055-content\"\n\t\tclass=\"bl-group\/detailsbutton bl-flex bl-items-center bl-mb-4 bl-cursor-pointer bl-text-inherit\n\t\t\thover:bl-text-identity-blue-80 active:bl-text-identity-blue bl-outline-identity-black\t\t\tdark:hover:bl-text-identity-yellow-60 dark:active:bl-text-identity-yellow dark:bl-outline-pure-white\t\t\tbl-transition-colors bl-duration-[400ms] !bl-outline-2 focus-visible:!bl-outline-dotted !bl-outline-offset-[6px]\">\n\t\t\n\t\t<svg width=\"24\" height=\"17\" viewBox=\"0 0 24 17\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"chevron-down\" class=\"bl-flex-shrink-0 bl-w-6 bl-text-inherit bl-rotate-180 print:bl-rotate-0 group-aria-expanded\/detailswrapper:bl-rotate-0 bl-me-3\" role=\"img\">\n\t<title>chevron-down<\/title>\n\t<path d=\"M12.0001 8.57706L4.28662 16.5242L-1.81865e-07 12.3636L12.0001 -4.43936e-05L24 12.3636L19.7133 16.5241L12.0001 8.57706Z\" fill=\"currentColor\"\/>\n<\/svg>\n\n\t\t<span class=\"bl-flex bl-items-center bl-flex-grow bl-m-0 bl-p-0 bl-text-start bl-min-h-11 group-hover\/detailsbutton:bl-underline bl-underline-offset-[6px] bl-decoration-[2px] xl:bl-decoration-[3px]\">\n\t\t\t\t\t\tmehr\t\t<\/span>\n\t<\/button>\n\t<div\n\t\tid=\"9fc418a2-7548-426a-bccf-977aa1c25055-content\"\n\t\taria-labelledby=\"9fc418a2-7548-426a-bccf-977aa1c25055-open-button\"\n\t\tclass=\"bl-hidden print:bl-block group-aria-expanded\/detailswrapper:bl-block is-layout-flow\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\"><strong>Betreuer:<\/strong> Prof. Dr. Michael Thoss, Dr. Samuel Rudge<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Abstract:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Die Untersuchung der elektrischen Eigenschaften von Nanosystemen ist eine wichtige Aufgabe der modernen Physik. Eine typische Konfiguration, mit der solche elektrischen Eigenschaften systematisch untersucht werden k\u00f6nnen, ist der Molek\u00fclkontakt, bei dem ein kleines Molek\u00fcl oder eine Atomkette zwei makroskopische Elektroden verbindet. In derartigen Systemen ist die Wechselwirkung von elektronischen und Vibrationsfreiheitsgraden innerhalb des Molek\u00fcls, wie Molek\u00fclschwingungen und Schwerpunktsbewegung, elementar f\u00fcr eine realistische Beschreibung der Dynamik. Die Ber\u00fccksichtigung solcher Elektron-Schwingungs-Kopplungen ist jedoch aus theoretischer Sicht eine anspruchsvolle Aufgabe, insbesondere in Regimen mit Schwingungsinstabilit\u00e4t, bei denen hochamplitudige Schwingungsbewegungen eine vollst\u00e4ndig quantenmechanische Beschreibung der Vibrationsfreiheitsgrade rechnerisch aufw\u00e4ndig machen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In dieser Arbeit untersuchen wir den Elektronentransport durch Molek\u00fclkontakte mit schwacher oder starker Elektron-Schwingungs-Kopplung unter Verwendung der Born-Markov-Mastergleichung und der semi-klassischen Theorie der elektronischen Reibung, mit der eine niederfrequente Schwingungsmode im Molek\u00fcl beschrieben wird. Zun\u00e4chst bestimmen wir, in welchen Parameterbereichen die semi-klassische Methode anwendbar ist mithilfe des wohl untersuchten Holstein-Modells, welches einen Molek\u00fclkontakt mit einem elektronischen Level und einer harmonischen Schwingungsmode umfasst. Es zeigt sich, dass der semi-klassische Ansatz akkurat ist, wenn die Eigenfrequenz der Schwingungsmode ausreichend klein gegen\u00fcber der Kopplung des Molek\u00fcls an die Elektroden ist.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Unter Verwendung der semi-klassischen Methode untersuchen wir eine Erweiterung des Holstein-Modells, das sogenannte Ein-Level-Zwei-Moden Modell, welches zus\u00e4tzlich eine zweite, hochfrequente Schwingungsmode beinhaltet. Die hochfrequente Schwingungsmode wird zusammen mit der elektronischen Dynamik voll quantenmechanisch behandelt. Bei starker Elektron-Schwingungs-Kopplung der hochfrequenten Mode zeigt sich, dass die zus\u00e4tzliche Mode eine deutlich stabilisierende Wirkung auf die niederfrequente Schwingungsmode aus\u00fcbt. Die Stabilisierung basiert darauf, dass die Elektron-Schwingungs-Kopplung der hochfrequenten Mode signifikant gr\u00f6\u00dfer als die der niederfrequenten Mode ist, was zu einer sehr ungleichm\u00e4\u00dfigen Verteilung der im Molek\u00fcl dissipierten Energie f\u00fchrt, wobei eine Anregung der hochfrequenten Mode stark beg\u00fcnstigt ist. Mit zunehmender Spannung zwischen den Elektroden wird die Stabilisierung periodisch schw\u00e4cher und st\u00e4rker, da neue Kan\u00e4le des Elektronentransports durch den Molek\u00fclkontakt zug\u00e4nglich werden, sodass eine negative differentielle Anregung der niederfrequenten Mode auftritt. Der in der Arbeit entdeckte Stabilisierungseffekt wurde zwischenzeitlich mithilfe der numerisch exakten Methode der hierarchischen Bewegungsgleichungen (HEOM) best\u00e4tigt [1].<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">[1] S. L. Rudge, C. Kaspar, R. L. Grether, S. Wolf, G. Stock, M. Thoss, J. Chem. Phys. 160, 184106 (2024).<\/p>\n\n\t<\/div>\n<\/div>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"670\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Grether.jpg\" alt=\"\" class=\"wp-image-1495 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Grether.jpg 600w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Grether-269x300.jpg 269w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><\/div>\n\n\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-pure-white bl-text-identity-black dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Alumni-Preis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Lennart Heinen <\/strong><br>Masterarbeit: „Binary Colloids in External Potentials with Local Density Dependent Switching“<\/p>\n\n\n<div class=\"bl-group\/detailswrapper wp-block-ufr-details\" aria-expanded=\"false\" data-block-id=\"a80ccb29-06ba-4f1c-ab97-21c19ac73f22\">\n\t<button\n\t\tdata-block-id=\"a80ccb29-06ba-4f1c-ab97-21c19ac73f22\"\n\t\tdata-role=\"open-button\"\n\t\tid=\"a80ccb29-06ba-4f1c-ab97-21c19ac73f22-open-button\"\n\t\taria-controls=\"a80ccb29-06ba-4f1c-ab97-21c19ac73f22-content\"\n\t\tclass=\"bl-group\/detailsbutton bl-flex bl-items-center bl-mb-4 bl-cursor-pointer bl-text-inherit\n\t\t\thover:bl-text-identity-blue-80 active:bl-text-identity-blue bl-outline-identity-black\t\t\tdark:hover:bl-text-identity-yellow-60 dark:active:bl-text-identity-yellow dark:bl-outline-pure-white\t\t\tbl-transition-colors bl-duration-[400ms] !bl-outline-2 focus-visible:!bl-outline-dotted !bl-outline-offset-[6px]\">\n\t\t\n\t\t<svg width=\"24\" height=\"17\" viewBox=\"0 0 24 17\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"chevron-down\" class=\"bl-flex-shrink-0 bl-w-6 bl-text-inherit bl-rotate-180 print:bl-rotate-0 group-aria-expanded\/detailswrapper:bl-rotate-0 bl-me-3\" role=\"img\">\n\t<title>chevron-down<\/title>\n\t<path d=\"M12.0001 8.57706L4.28662 16.5242L-1.81865e-07 12.3636L12.0001 -4.43936e-05L24 12.3636L19.7133 16.5241L12.0001 8.57706Z\" fill=\"currentColor\"\/>\n<\/svg>\n\n\t\t<span class=\"bl-flex bl-items-center bl-flex-grow bl-m-0 bl-p-0 bl-text-start bl-min-h-11 group-hover\/detailsbutton:bl-underline bl-underline-offset-[6px] bl-decoration-[2px] xl:bl-decoration-[3px]\">\n\t\t\t\t\t\tmehr\t\t<\/span>\n\t<\/button>\n\t<div\n\t\tid=\"a80ccb29-06ba-4f1c-ab97-21c19ac73f22-content\"\n\t\taria-labelledby=\"a80ccb29-06ba-4f1c-ab97-21c19ac73f22-open-button\"\n\t\tclass=\"bl-hidden print:bl-block group-aria-expanded\/detailswrapper:bl-block is-layout-flow\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\"><strong>Betreuer:<\/strong> Prof. Dr. Joachim Dzubiella<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Abstract:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Biologische Zellen haben die F\u00e4higkeit, zwischen internen Funktionszust\u00e4nden in Abh\u00e4ngigkeit von der Dichte anderer Zellen in ihrer Umgebung zu schalten, was als „Quorum Sensing“ bezeichnet wird. In dieser Arbeit untersuchen wir die Struktur und die Dynamik eines Modellsystems aus bin\u00e4ren Kolloiden mit einem schaltbaren internen Freiheitsgrad in Gegenwart externer Potentiale. Die Kolloide in unserem Modell sind ideal, haben aber zwei m\u00f6gliche diskrete Zust\u00e4nde, in denen sie unterschiedlich von dem externen Feld beeinflusst werden. Au\u00dferdem schalten die Kolloide zwischen diesen Zust\u00e4nden zun\u00e4chst mit konstanten, sp\u00e4ter mit von der lokalen Dichte in ihrer Umgebung abh\u00e4ngigen Raten. Wir untersuchen dieses Modell mit Simulationen der Brownschen Dynamik sowie mit einer theoretischen Beschreibung in Form von Reaktionsdiffusionsgleichungen. Wir finden zwei unabh\u00e4ngige L\u00f6sungen dieser Gleichungen, um das Kolloidverhalten zu beschreiben. F\u00fcr konstante Schaltraten rekreieren wir Ergebnisse aus bestehenden Studien, z.B. ein effektives Potential im Bereich schneller Schaltraten. F\u00fcr den Fall der lokalen Dichteabh\u00e4ngigkeit untersuchen wir zahlreiche Formen f\u00fcr die Abh\u00e4ngigkeitsfunktionen und quantifizieren den Einfluss ihrer Parameter. Eine sigmoidale Abh\u00e4ngigkeitsfunktion f\u00fchrt zu einem interessanten Struktureffekt in den Kolloiddichteprofilen, ein bemerkenswerter Befund, da von idealen Kolloiden nicht erwartet wird, dass sie ohne Wechselwirkungen strukturieren. Unser Modell ist in der Lage, tiefe Einblicke in den Quorum-Sensing-Signalprozess von Bakterien zu geben, insbesondere im Zusammenhang mit Biofilmbildung.<\/p>\n\n\t<\/div>\n<\/div>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"889\" height=\"1024\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Heinen-889x1024.jpg\" alt=\"\" class=\"wp-image-1496 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Heinen-889x1024.jpg 889w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Heinen-260x300.jpg 260w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Heinen-768x885.jpg 768w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Heinen.jpg 940w\" sizes=\"auto, (max-width: 889px) 100vw, 889px\" \/><\/figure><\/div>\n\n\t<\/div>\n\n\n\n<div class=\"[&>*]:bl-relative last:[&>*.bl-absolute]:bl-absolute [&>*]:bl-z-20 last:[&>*]:bl-z-10 bl-relative bl-overflow-x-clip [.wp-block-ufr-section_&]:bl-overflow-x-visible bl-bg-pure-white bl-text-identity-black dark:bl-bg-identity-darkblue dark:bl-text-pure-white bl-py-[24px] alignfull wp-block-ufr-section has-global-padding is-layout-constrained wp-block-ufr-section-is-layout-constrained\">\n\n\t\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-vertically-aligned-center\" style=\"grid-template-columns:auto 20%\"><div class=\"wp-block-media-text__content\">\n<h3 class=\"wp-block-heading\">Alumni-Preis<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Jose Angel Hernandez Cuevas<\/strong> <br>Masterarbeit: „Radiative corrections to the Higgs-boson decay into bb pairs“<\/p>\n\n\n<div class=\"bl-group\/detailswrapper wp-block-ufr-details\" aria-expanded=\"false\" data-block-id=\"54257522-036a-48d5-a355-e540f7aee24e\">\n\t<button\n\t\tdata-block-id=\"54257522-036a-48d5-a355-e540f7aee24e\"\n\t\tdata-role=\"open-button\"\n\t\tid=\"54257522-036a-48d5-a355-e540f7aee24e-open-button\"\n\t\taria-controls=\"54257522-036a-48d5-a355-e540f7aee24e-content\"\n\t\tclass=\"bl-group\/detailsbutton bl-flex bl-items-center bl-mb-4 bl-cursor-pointer bl-text-inherit\n\t\t\thover:bl-text-identity-blue-80 active:bl-text-identity-blue bl-outline-identity-black\t\t\tdark:hover:bl-text-identity-yellow-60 dark:active:bl-text-identity-yellow dark:bl-outline-pure-white\t\t\tbl-transition-colors bl-duration-[400ms] !bl-outline-2 focus-visible:!bl-outline-dotted !bl-outline-offset-[6px]\">\n\t\t\n\t\t<svg width=\"24\" height=\"17\" viewBox=\"0 0 24 17\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n\taria-label=\"chevron-down\" class=\"bl-flex-shrink-0 bl-w-6 bl-text-inherit bl-rotate-180 print:bl-rotate-0 group-aria-expanded\/detailswrapper:bl-rotate-0 bl-me-3\" role=\"img\">\n\t<title>chevron-down<\/title>\n\t<path d=\"M12.0001 8.57706L4.28662 16.5242L-1.81865e-07 12.3636L12.0001 -4.43936e-05L24 12.3636L19.7133 16.5241L12.0001 8.57706Z\" fill=\"currentColor\"\/>\n<\/svg>\n\n\t\t<span class=\"bl-flex bl-items-center bl-flex-grow bl-m-0 bl-p-0 bl-text-start bl-min-h-11 group-hover\/detailsbutton:bl-underline bl-underline-offset-[6px] bl-decoration-[2px] xl:bl-decoration-[3px]\">\n\t\t\t\t\t\tmehr\t\t<\/span>\n\t<\/button>\n\t<div\n\t\tid=\"54257522-036a-48d5-a355-e540f7aee24e-content\"\n\t\taria-labelledby=\"54257522-036a-48d5-a355-e540f7aee24e-open-button\"\n\t\tclass=\"bl-hidden print:bl-block group-aria-expanded\/detailswrapper:bl-block is-layout-flow\">\n\t\t\t\t\n\n<p class=\"wp-block-paragraph\"><strong>Betreuer:<\/strong> Prof. Dr. Stefan Dittmaier<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Abstract:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">s far as we know, there are four fundamental forces of nature: gravitational, electromagnetic, strong, and weak. Rooted in the principles of quantum field theory (QFT), the Standard Model of particle physics (SM) describes the elementary particles and their behavior under the fundamental forces, except for the gravitational force. Since the mid-20th century, numerous experiments conducted in laboratories worldwide have tested the predictions of the SM by performing high-accuracy measurements. These experiments have consistently yielded strong evidence to support the validity of the SM.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Since the discovery of the electron at the end of 19th century, many more elementary particles have been found. The last missing particle described by the SM, the Higgs boson, was finally discovered in 2012. Despite the success of the SM, there are some phenomena that cannot be explained within this model. For instance, it offers no clues about the origin of dark matter or dark energy. Moreover, it does not shed light upon the matter-antimatter asymmetry in the universe or the mechanism that gives mass to neutrinos. Additionally, almost 12 years after the discovery of the Higgs boson, physicists have yet to corroborate if all the couplings of the found Higgs boson align with the values expected from the SM Higgs boson or if it is part of a more comprehensive Higgs sector.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The third and subsequent runs of the LHC will significantly increase the statistics for Higgs boson processes. This will further improve the accuracy of important quantities, such as the coupling of the Higgs boson to the gauge bosons and the third generation of fermions. Moreover, the forthcoming measurements will allow us to study the couplings of the Higgs boson to other generations of fermions and to itself. These measurements are essential to determine the exact structure of the Higgs sector and might provide additional evidence leading to a more complete theory. To match the accuracy of these measurements and improve the corresponding predictions within the SM, it is imperative to derive higher-order corrections for the Higgs-boson decays. The calculation of higher-order corrections to the H \u2192 bb decay width, which is the dominant decay channel of the SM Higgs boson, contributes to improving the 1 precision of the total Higgs-boson decay width and, consequently, the precision of all other branching ratios.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The main objectives of this thesis were to compute the next-to-leading-order (NLO) Quantum Chromodynamics (QCD) and Electroweak (EW) corrections to the H \u2192 bb decay width in the on-shell renormalization scheme with massive bottom quarks, and the mixed nextto- next-to-leading order (NNLO) QCD\u00d7EW correction of order O(Nf\u03b1s\u03b1) in the on-shell scheme, where Nf stands for the number of fermion flavors. Additionally, the NLO corrections were converted from the on-shell to the modified minimal-subtraction (MS) scheme by applying a reparametrization in terms of a running Yukawa coupling based on the MS mass of the bottom quark.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For comparison purposes, the phase-space integration of the real NLO corrections in the OS scheme was evaluated using both the dipole subtraction method and, alternatively, the slicing method. The relative errors between the NLO corrections computed in this thesis and those obtained from the literature are below 0,0004% for the dipole subtraction method and below 0,09% for the slicing method. Furthermore, the Higgs tadpole contributions to the NLO corrections in the MS scheme were treated within three different tadpole schemes: the Gauge-Invariant Vacuum expectation value Scheme (GIVS), the Parameter Renormalized Tadpole Scheme (PRTS), and the Fleischer\u2013Jegerlehner Tadpole Scheme (FJTS).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The differences between the NLO corrections obtained within these three tadpole schemes were thoroughly discussed, and the results in the PRTS were compared with those reported in the literature under the assumption of massless bottom quarks. The NNLO correction of O(Nf\u03b1s\u03b1) involves Feynman diagrams at order O(\u03b1s\u03b1) containing only subdiagrams with closed fermion loops and gluon exchange or radiation. It was found that this correction depends on the NLO QCD correction and the insertions of the one-loop and two-loop renormalization constants in the Hbb vertex at O(Nf\u03b1) and O(Nf\u03b1s\u03b1). Therefore, the renormalization constants for this correction were evaluated using the one-loop and two-loop self-energies of the gauge and Higgs bosons at O(Nf\u03b1) and O(Nf\u03b1s\u03b1), respectively. The NNLO correction to the decay width computed in this thesis is at the per-mille level.<\/p>\n\n\t<\/div>\n<\/div>\n<\/div><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"967\" src=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Hernandez.jpg\" alt=\"\" class=\"wp-image-1497 size-full\" srcset=\"https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Hernandez.jpg 800w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Hernandez-248x300.jpg 248w, https:\/\/uni-freiburg.de\/phys\/wp-content\/uploads\/sites\/12\/Preis_24_Hernandez-768x928.jpg 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\t<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Liste der Preistr\u00e4ger*innen bedeutender Preise und Auszeichnungen am Physikalischen Institut<\/p>\n","protected":false},"author":9,"featured_media":0,"parent":248,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_trash_the_other_posts":false,"editor_notices":[],"footnotes":""},"class_list":["post-1458","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/uni-freiburg.de\/phys\/wp-json\/wp\/v2\/pages\/1458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/uni-freiburg.de\/phys\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/uni-freiburg.de\/phys\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/uni-freiburg.de\/phys\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/uni-freiburg.de\/phys\/wp-json\/wp\/v2\/comments?post=1458"}],"version-history":[{"count":30,"href":"https:\/\/uni-freiburg.de\/phys\/wp-json\/wp\/v2\/pages\/1458\/revisions"}],"predecessor-version":[{"id":3660,"href":"https:\/\/uni-freiburg.de\/phys\/wp-json\/wp\/v2\/pages\/1458\/revisions\/3660"}],"up":[{"embeddable":true,"href":"https:\/\/uni-freiburg.de\/phys\/wp-json\/wp\/v2\/pages\/248"}],"wp:attachment":[{"href":"https:\/\/uni-freiburg.de\/phys\/wp-json\/wp\/v2\/media?parent=1458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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