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From single to many atoms in a microscopic optical dipole trap
This thesis focuses on the manipulation of rubidium 87 atoms in a microscopic optical dipole trap. The experiments are performed in various regimes where the number of... -
Quantized vortices in a Bose-Einstein condensate: thermal activation and dyna...
This thesis manuscript presents experimental results on Bose-Einstein condensates in optical lattices and in the regime of fast rotation. In an optical lattice an... -
Piégeage magnétique d'un gaz d'hélium métastable : vers la condensation de Bo...
A cold gas sample of metastable helium atoms ($2^3S_1$) is a possible candidate for observing Bose-Einstein condensation. Theoretical studies predict that Penning... -
Transitions de phase superfluide dans les gaz de Bose 3D, 2D, et en présence ...
Ce manuscrit présente mes travaux de recherche depuis la fin de ma thèse début 2005. J'essaye en particulier de replacer mes recherches dans leur contexte, et... -
Transport in one-dimensional disordered Bose-Einstein condensates
This thesis presents a theoretical study of coherent transport phenomena in unidimensional Bose-Einstein condensates in presence of disorder. We devoted a particular... -
2-photon photoassociation of ultra-cold metastable helium
In the vicinity of Bose-Einstein condensation, the collisional properties of a dilute gas of metastable helium He∗ in the state 23 S1 are governed by the rate of... -
Collective dynamics of excitons and exciton-polaritons in nanoscale heterostr...
In my thesis I will discuss some aspects of collective dynamics of excitons and exciton-polaritons in nanoscale heterostructures. In the first Chapter I will make a...
