On Ergotropic Gap of Tripartite Separable Systems
- URL: http://arxiv.org/abs/2207.11899v1
- Date: Mon, 25 Jul 2022 04:04:35 GMT
- Title: On Ergotropic Gap of Tripartite Separable Systems
- Authors: Ya-Juan Wu, Shao-Ming Fei, Zhi-Xi Wang and Ke Wu
- Abstract summary: We derive an analytical upper bound of the ergotropic gap with respect to $dtimes dtimes d$ tripartite separable states.
This bound also provides a necessary criterion for the separability of tripartite states.
- Score: 4.092903642660277
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- 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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