Using dark states to charge and stabilise open quantum batteries

• URL: http://arxiv.org/abs/2002.10044v2
• Date: Tue, 1 Sep 2020 02:24:36 GMT
• Title: Using dark states to charge and stabilise open quantum batteries
• Authors: James Q. Quach and William J. Munro
• Abstract summary: We introduce an open quantum battery protocol using dark states to achieve both superextensive capacity and power density. We show that the enhanced capacity and power is correlated with entanglement.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We introduce an open quantum battery protocol using dark states to achieve both superextensive capacity and power density, with non-interacting spins coupled to a reservoir. Further, our power density actually scales with the of number of spins $N$ in the battery. We show that the enhanced capacity and power is correlated with entanglement. Whilst connected to the charger, the charged state of the battery is a steady state, stabilized through quantum interference in the open system.

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