Quantum heat engine based on a spin-orbit- and Zeeman-coupled Bose-Einstein condensate

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PhysRevA.106.L030201.pdf(481.18 KB)
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Date
2022-09-27
Authors
Li, Jing
Sherman, E. Ya
Ruschhaupt, Andreas
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American Physical Society
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Abstract
We explore the potential of a spin-orbit-coupled Bose-Einstein condensate for thermodynamic cycles. For this purpose we propose a quantum heat engine based on a condensate with spin-orbit and Zeeman coupling as a working medium. The cooling and heating are simulated by contacts of the condensate with an external magnetized media and demagnetized media. We examine the condensate ground-state energy and its dependence on the strength of the synthetic spin-orbit and Zeeman couplings and interatomic interaction. Then we study the efficiency of the proposed engine. The cycle has a critical value of spin-orbit coupling related to the engine’s maximum efficiency.
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Spin-orbit-coupled Bose-Einstein condensate , Quantum heat engine
Citation
Li, J., Sherman, E. Y. and Ruschhaupt, A. (2022) 'Quantum heat engine based on a spin-orbit-and Zeeman-coupled Bose-Einstein condensate', Physical Review A, 106(3), L030201 (6pp). https://doi.org/10.1103/PhysRevA.106.L030201
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