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Microscopic structure and Dynamics of Vortices in a dense Superfluid
Vortices study's justification lays in the fact that those former play an important part in quantum turbulence. The Gross-Pitaevskii equation can't be a proper model... -
Polaritons in semiconductor microcavities : quantum fluid dynamics, spin effe...
This work is devoted to the study of the properties of polaritons, half-matter/half-light particles, in a semiconductor microcavity. Their bosonic behaviour enables to... -
Tonks Girardeau Bosons on a 1D ring trap
Recent experimental activities of boson trapping on a ring geometry open the way to explore a novel topology. We focus on a tight ring trap with strong transverse... -
Quantum fluctuations and nonlinear effects in Bose-Einstein condensates : Fro...
This thesis is devoted to the study of the analogue of Hawking radiation in Bose-Einstein condensates. The first chapter presents new configurations of experimental... -
The von Kármán flow as a paradigm for out-of-equilibrium statistical physics
This dissertation tries a novel approach of statistical mechanics (at and out of equilibrium) to understand the behaviour of a fully turbulent confined flow --- von... -
Thermal and superfluid properties of the two-dimensional Bose gas
The physical properties of a homogeneous system at the thermodynamic equilibrium are strongly constrained by its dimensionality. In this respect, the two dimensional... -
Dynamics of ultracold quantum gases in correlated disordered potentials
The topic of this thesis is the study of localization of a quasi-one-dimensional and harmonically trapped Bose-Einstein condensate through which various disordered...
