Regimes of quantum degeneracy in trapped 1D gases

Details Regimes of quantum degeneracy in trapped 1D gases Regimes of quantum degeneracy in trapped 1D gases

2000-06-22

arxiv.org/abs/cond-mat/0006339v1

Phys. Rev. Lett. 85, 3745 (2000)

Physics

Condensed Matter

Statistical Mechanics

4 pages, 1 eps figure

Scientific paper

10.1103/PhysRevLett.85.3745

We discuss the regimes of quantum degeneracy in a trapped 1D gas and obtain the diagram of states. Three regimes have been identified: the BEC regimes of a true condensate and quasicondensate, and the regime of a trapped gas of Tonks (gas of impenetrable bosons). The presence of a sharp cross-over to the BEC regime requires extremely small interaction between particles. We discuss how to distinguish between true and quasicondensates in phase coherence experiments.

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