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arXiv · 2207.11899

On Ergotropic Gap of Tripartite Separable Systems

Ya-Juan Wu·Shao-Ming Fei·Zhi-Xi Wang·Ke Wu
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Abstract

Extracting work from quantum system is one of the important areas in quantum thermodynamics. As a significant thermodynamic quantity, the ergotropy gap characterizes the difference between the global and local maximum extractable works. We derive an analytical upper bound of the ergotropic gap with respect to $d\times d\times d$ tripartite separable states. This bound also provides a necessary criterion for the separability of tripartite states. Detailed examples are presented to illustrate the efficiency of this separability criterion.

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Ya-Juan Wu, Shao-Ming Fei, Zhi-Xi Wang, Ke Wu. 2022-07-25. On Ergotropic Gap of Tripartite Separable Systems. https://doi.org/10.1142/s0219749922500174

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