Selected Publications
- Casimir-Polder Shifts on Quantum Levitation States. P.-P. Crépin, G. Dufour, R. Guérout, A. Lambrecht, and S. Reynaud. Physical Review A 95, 032501 (2017).
- Quantum Reflection and Liouville Transformations from Wells to Walls. G. Dufour, R. Guérout, A. Lambrecht and S. Reynaud. Europhysics Letters, 110, 30007 (2015).
- Shaping the Distribution of Vertical Velocities of Antihydrogen in GBAR. G. Dufour, P. Debu, A. Lambrecht, V. V. Nesvizhevsky, S. Reynaud and A. Yu. Voronin. European Physical Journal C, 74, 2731 (2014).
- Quantum Reflection of Antihydrogen from the Casimir Potential above Matter Slabs. G. Dufour, A. Gérardin, R. Guérout, A. Lambrecht, V. V. Nesvizhevsky, S. Reynaud and A. Yu. Voronin. Physical Review A, 87, 012901 (2013).
- Anderson Localization of Pairs in Bichromatic Optical Lattices. G. Dufour and G. Orso. Physical Review Letters, 109, 155306 (2012).
FRIAS Project
Bosonic mixtures on a lattice: (in-)distinguishability and interactions
This proposal aims to disentangle the role of indistinguishability and interactions for the characteristic spectral and dynamical properties of interacting bosons trapped in a lattice potential. Describing the behavior of such systems features two essential challenges. Firstly, interactions prevent a description of the system based on single-particle properties. Secondly, and perhaps less widely recognized, the indistinguishability of the involved particles leads to complex and as yet poorly understood interference phenomena. Indeed, until now, the role of indistinguishability in many-particle interference has essentially been investigated in the absence of interactions, while on the contrary we will explore the case of interacting particles. By considering mixtures of mutually distinguishable bosonic species, we will be able to adjust the level of distinguishability in the system, and thus to single out the role of indistinguishability in the system’s dynamics and spectral properties. We will proceed by systematically studying the Hilbert space structure induced by indistinguishability (or the lack thereof) in small systems which are amenable to direct diagonalization. Comparing the behavior of systems exhibiting various degrees of distinguishability and interactions, we will identify the mechanisms which govern the interplay of these two fundamental ingredients of many-body systems.