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56 papers · 1 filter
Internal state conversion in ultracold gases
J. N. Fuchs, D. M. Gangardt, F. Laloe
We consider an ultracold gas of (non-condensed) bosons or fermions with two internal states, and study the effect of a gradient of the transition frequency between these states. Wh…
Correlation between plasma and temperature corrections to the Casimir force
Cyriaque Genet, Astrid Lambrecht, Serge Reynaud
When comparing experimental results with theoretical predictions of the Casimir force, the accuracy of the theory is as important as the precision of experiments. Here we evaluate…
Decoherence and gravitational backgrounds
Serge Reynaud, Brahim Lamine, Astrid Lambrecht +2
We study the decoherence process associated with the scattering of stochastic gravitational waves. We discuss the case of macroscopic systems, such as the planetary motion of the M…
Mean field effects in a trapped classical gas
D. Guery-Odelin
In this article, we investigate mean field effects for a bosonic gas harmonically trapped above the transition temperature in the collisionless regime. We point out that those effe…
Dynamics of dark solitons in elongated Bose-Einstein condensates
A. E. Muryshev, G. V. Shlyapnikov, W. Ertmer +2
We find two types of moving dark soliton textures in elongated Bose-Einstein condensates: non-stationary kinks and proper dark solitons. The former have a curved notch region and r…
The transverse breathing mode of an elongated Bose-Einstein condensate
F. Chevy, V. Bretin, P. Rosenbusch +2
We study experimentally the transverse monopole mode of an elongated rubidium condensate. Due to the scaling invariance of the non-linear Schrödinger (Gross-Pitaevski) equation, th…