Quantum battery charging by non-equilibrium steady-state currents

Abstract

We present an analysis of the availability and maximum extractable work of quantum batteries in the presence of charge and/or heat steady-state currents. Quantum batteries are modelled as non-interacting open quantum systems (mesoscopic systems) strongly coupled to two thermal and particle reservoirs within the framework of non-equilibrium Green's function theory in a steady-state regime. We found that the battery can be charged manifestly by a steady-state charge current compared to heat one, especially, in an off-resonant transport regime. It allows us to reliably access the performance of the quantum batteries in the high bias-charging regime.

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Cited by in corpus (7)

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• Steady-state charging of quantum batteries via dissipative ancillas
• Fast charging of an Ising spin pair quantum battery using optimal control
• Noncompletely Positive Quantum Maps Enable Efficient Local Energy Extraction in Batteries
• Stronger speed limit for observables: Tight bound for the capacity of entanglement, the modular Hamiltonian and the charging of a quantum battery
• Auxiliary-assisted energy distillation from quantum batteries
• Positive and non-positive measurements in energy distillation from quantum batteries