Quantum engines with interacting Bose-Einstein condensates
- URL: http://arxiv.org/abs/2308.12205v1
- Date: Wed, 23 Aug 2023 15:43:14 GMT
- Title: Quantum engines with interacting Bose-Einstein condensates
- Authors: Julian Amette Estrada, Franco Mayo, Augusto J. Roncaglia, Pablo D.
Mininni
- Abstract summary: We consider a quantum Otto cycle with an interacting Bose-Einstein condensate at finite temperature.
We present a procedure to evolve this system in time in three dimensions.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We consider a quantum Otto cycle with an interacting Bose-Einstein condensate
at finite temperature. We present a procedure to evolve this system in time in
three spatial dimensions, in which closed (adiabatic) strokes are described by
the Gross-Pitaevskii equation, and open (isochoric) strokes are modeled using a
stochastic Ginzburg-Landau equation. We analyze the effect on the thermodynamic
efficiency of the strength of interactions, the frequency of the harmonic trap,
and the temperatures of the reservoirs. The efficiency has little sensitivity
to changes in the temperatures, but decreases as interactions increase.
However, stronger interactions allow for faster cycles and for substantial
increases in power.
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