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

TL;DR

This paper proposes a quantum heat engine using a spin-orbit and Zeeman-coupled Bose-Einstein condensate, analyzing its efficiency and the effects of coupling strengths on its performance.

Contribution

It introduces a novel quantum heat engine model based on spin-orbit and Zeeman-coupled Bose-Einstein condensates, exploring its thermodynamic cycle and efficiency.

Findings

Efficiency depends on spin-orbit coupling strength.

Critical spin-orbit coupling value maximizes efficiency.

Ground state energy varies with coupling parameters.

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 maximum efficiency.