Catalysis in Charging Quantum Batteries

TL;DR

This paper introduces a new method for improving the charging efficiency of quantum batteries using catalyst systems, which mediate energy transfer without storing significant energy themselves, reducing the need for laser frequency optimization.

Contribution

It presents a novel catalytic approach to quantum battery charging that enhances energy transfer and simplifies operational parameters.

Findings

Catalyst systems significantly increase energy transfer to quantum batteries.

Catalysts store minimal energy, acting mainly as mediators.

The approach reduces dependence on laser frequency optimization.

Abstract

We propose a novel approach for optimization of charging of harmonic oscillators (quantum batteries) coupled to a harmonic oscillator (charger), driven by laser field. We demonstrate that energy transfer limitations can be significantly mitigated in the presence of catalyst systems, mediating between the charger and quantum batteries. We show that these catalyst systems, either qubits or harmonic oscillators, enhance the amount of energy transferred to quantum batteries, while they themselves store almost no energy. It eliminates the need for optimizing frequency of the charging laser field, whose optimal value in the bare setting depends on coupling strengths between the charger and the batteries.