dorsal/arxiv
View SchemaAdiabatically changing the phase-space density of a trapped Bose gas
| Authors | P. W. H. Pinkse, A. Mosk, M. Weidemüller, M. W. Reynolds, T. W. Hijmans, J. T. M. Walraven |
|---|---|
| Categories | |
| ArXiv ID | physics/9611026 |
| URL | https://arxiv.org/abs/physics/9611026 |
| DOI | 10.1103/PhysRevLett.78.990 |
| Journal | Phys.Rev.Lett.78:990-993,1997 |
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.
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"abstract": "We show that the degeneracy parameter of a trapped Bose gas can be changed\nadiabatically in a reversible way, both in the Boltzmann regime and in the\ndegenerate Bose regime. We have performed measurements on spin-polarized atomic\nhydrogen in the Boltzmann regime demonstrating reversible changes of the\ndegeneracy parameter (phase-space density) by more than a factor of two. This\nresult is in perfect agreement with theory. By extending our theoretical\nanalysis to the quantum degenerate regime we predict that, starting close\nenough to the Bose-Einstein phase transition, one can cross the transition by\nan adiabatic change of the trap shape.",
"arxiv_id": "physics/9611026",
"authors": [
"P. W. H. Pinkse",
"A. Mosk",
"M. Weidem\u00fcller",
"M. W. Reynolds",
"T. W. Hijmans",
"J. T. M. Walraven"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevLett.78.990",
"journal_ref": "Phys.Rev.Lett.78:990-993,1997",
"title": "Adiabatically changing the phase-space density of a trapped Bose gas",
"url": "https://arxiv.org/abs/physics/9611026"
},
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