Evaporative cooling and self-thermalization in an open system of interacting fermions. (English) Zbl 07761406
Summary: Depletion dynamics of an open system of weakly interacting fermions with two-body random interactions is studied. In this model, fermions are escaping from the high-energy one-particle orbitals, that mimics the evaporation process used in laboratory experiments with neutral atoms to cool them to ultra-low temperatures. It is shown that due to self-thermalization the system instantaneously adjusts to the new temperature which decreases with the course of time.
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
MSC:
| 81S22 | Open systems, reduced dynamics, master equations, decoherence |
| 81V70 | Many-body theory; quantum Hall effect |
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