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arXiv · 1411.4946

Degenerate Bose gases with uniform loss

Pjotrs Grišins·Bernhard Rauer·Tim Langen·Jörg Schmiedmayer·Igor E. Mazets
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Abstract

We theoretically investigate a weakly-interacting degenerate Bose gas coupled to an empty Markovian bath. We show that in the universal phononic limit the system evolves towards an asymptotic state where an emergent temperature is set by the quantum noise of the outcoupling process. For situations typically encountered in experiments, this mechanism leads to significant cooling. Such dissipative cooling supplements conventional evaporative cooling and dominates in settings where thermalization is highly suppressed, such as in a one-dimensional quasicondensate.

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Pjotrs Grišins, Bernhard Rauer, Tim Langen, Jörg Schmiedmayer, Igor E. Mazets. 2016-03-21. Degenerate Bose gases with uniform loss. https://doi.org/10.1103/physreva.93.033634

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