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Published on: March 30, 2017
Regimes of quantum degeneracy in trapped 1D gases
Petrov1, Shlyapnikov, Walraven
1FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands and Russian Research Center, Kurchatov Institute, Kurchatov Square, 123182 Moscow, Russia.
Abstract:
We discuss the regimes of quantum degeneracy in a trapped 1D gas and obtain the diagram of states. Three regimes have been identified: the Bose-Einstein condensation (BEC) regimes of a true condensate and quasicondensate, and the regime of a trapped Tonks gas (gas of impenetrable bosons). The presence of a sharp crossover 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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