Boosting quantum battery performance by structure engineering
- URL: http://arxiv.org/abs/2104.06522v1
- Date: Tue, 13 Apr 2021 21:34:55 GMT
- Title: Boosting quantum battery performance by structure engineering
- Authors: Junjie Liu and Dvira Segal
- Abstract summary: Quantum coherences, correlations and collective effects can be harnessed to the advantage of quantum batteries.
We introduce a feasible structure engineering scheme that is applicable to spin-based open quantum batteries.
- Score: 6.211723927647019
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: Quantum coherences, correlations and collective effects can be harnessed to
the advantage of quantum batteries. Here, we introduce a feasible structure
engineering scheme that is applicable to spin-based open quantum batteries. Our
scheme, which builds solely upon a modulation of spin energy gaps, allows
engineered quantum batteries to exploit spin-spin correlations for mitigating
environment-induced aging. As a result of this advantage, an engineered quantum
battery can preserve relatively more energy as compared with its non-engineered
counterpart over the course of the storage phase. Particularly, the excess in
stored energy is independent of system size. This implies a scale-invariant
passive protection strategy, which we demonstrate on an engineered quantum
battery with staggered spin energy gaps. Our findings establish structure
engineering as a useful route for advancing quantum batteries, and bring new
perspectives on efficient quantum battery designs.
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