We investigate theoretically a one-dimensional ideal Bose gas that is driven into a steady state far from equilibrium via the coupling to two heat baths: a global bath of temperature T and a "hot needle," a bath of temperature T-h >> T with localized coupling to the system. Remarkably, this system features a crossover to finite-size Bose condensation at temperatures T that are orders of magnitude larger than the equilibrium condensation temperature. This counterintuitive effect is explained by a suppression of long-wavelength excitations resulting from the competition between both baths. Moreover, for sufficiently large needle temperatures ground-state condensation is superseded by condensation into an excited state, which is favored by its...
The ideal Bose gas in a highly anisotropic harmonic potential is studied. It is found that Bose-Eins...
We develop a general theory of adiabatic output coupling from trapped atomic Bose-Einstein Condensat...
The fact that two-dimensional interacting trapped systems do not undergo Bose-Einstein Condensation ...
Quantum systems that are in weak contact with a thermal heat bath will ultimately relax to an equili...
We derive a theory for Bose condensation in nonequilibrium steady states of bosonic quantum gases th...
Bound electron–hole pairs—excitons—are light Bose particles with a mass comparable to or smaller tha...
The stationary state solutions and dynamics of Bose-Einstein condensates (BECs) at T = 0 are well de...
International audienceWe develop a finite-temperature hydrodynamic approach for a harmonically trapp...
This thesis describes studies of out-of-equilibrium dynamics in an interacting homogeneous Bose gas....
The semi-classical theory of a finite temperature Bose condensed gas is presented, based on the Gros...
Bose-Einstein condensation is a collective quantum phenomenon where a macroscopic number of bosons o...
The theory of resonant generation of nonground-state Bose-Einstein condensates is extended to Bose-c...
Recent experimental observations of collective excitations of Bose condensed atomic vapours have sti...
We theoretically investigate a weakly interacting degenerate Bose gas coupled to an empty Markovian ...
Out of thermal equilibrium, bosonic quantum systems can Bose-condense away from the ground state, fe...
The ideal Bose gas in a highly anisotropic harmonic potential is studied. It is found that Bose-Eins...
We develop a general theory of adiabatic output coupling from trapped atomic Bose-Einstein Condensat...
The fact that two-dimensional interacting trapped systems do not undergo Bose-Einstein Condensation ...
Quantum systems that are in weak contact with a thermal heat bath will ultimately relax to an equili...
We derive a theory for Bose condensation in nonequilibrium steady states of bosonic quantum gases th...
Bound electron–hole pairs—excitons—are light Bose particles with a mass comparable to or smaller tha...
The stationary state solutions and dynamics of Bose-Einstein condensates (BECs) at T = 0 are well de...
International audienceWe develop a finite-temperature hydrodynamic approach for a harmonically trapp...
This thesis describes studies of out-of-equilibrium dynamics in an interacting homogeneous Bose gas....
The semi-classical theory of a finite temperature Bose condensed gas is presented, based on the Gros...
Bose-Einstein condensation is a collective quantum phenomenon where a macroscopic number of bosons o...
The theory of resonant generation of nonground-state Bose-Einstein condensates is extended to Bose-c...
Recent experimental observations of collective excitations of Bose condensed atomic vapours have sti...
We theoretically investigate a weakly interacting degenerate Bose gas coupled to an empty Markovian ...
Out of thermal equilibrium, bosonic quantum systems can Bose-condense away from the ground state, fe...
The ideal Bose gas in a highly anisotropic harmonic potential is studied. It is found that Bose-Eins...
We develop a general theory of adiabatic output coupling from trapped atomic Bose-Einstein Condensat...
The fact that two-dimensional interacting trapped systems do not undergo Bose-Einstein Condensation ...