Adiabatically changing the phase-space density of a trapped Bose gas
Atomic Physics
2016-08-15 v1
Abstract
We show that the degeneracy parameter of a trapped Bose gas can be changed adiabatically in a reversible way, both in the Boltzmann regime and in the degenerate Bose regime. We have performed measurements on spin-polarized atomic hydrogen in the Boltzmann regime demonstrating reversible changes of the degeneracy parameter (phase-space density) by more than a factor of two. This result is in perfect agreement with theory. By extending our theoretical analysis to the quantum degenerate regime we predict that, starting close enough to the Bose-Einstein phase transition, one can cross the transition by an adiabatic change of the trap shape.
Cite
@article{arxiv.physics/9611026,
title = {Adiabatically changing the phase-space density of a trapped Bose gas},
author = {P. W. H. Pinkse and A. Mosk and M. Weidemüller and M. W. Reynolds and T. W. Hijmans and J. T. M. Walraven},
journal= {arXiv preprint arXiv:physics/9611026},
year = {2016}
}
Comments
4 pages, 3 figures, Latex, submitted to PRL