Periodically driven many-body quantum battery

TL;DR

This paper investigates how periodic driving influences energy transfer and stability in a quantum spin-based battery, revealing resonance effects and the limitations of quantum advantage in charging power.

Contribution

It introduces a model of a quantum battery with periodic modulation, analyzing effects of integrability and breaking it to achieve global charging without quantum advantage.

Findings

Resonance tunneling enhances energy transfer at specific frequencies.

Breaking integrability can lead to global charging of the battery.

No quantum advantage in charging power was observed despite global charging.

Abstract

We explore the charging of a quantum battery based on spin systems through periodic modulation of a transverse-field like Ising Hamiltonian. In the integrable limit, we find that resonance tunneling can lead to a higher transfer of energy to the battery and better stability of the stored energy at specific drive frequencies. When the integrability is broken in the presence of an additional longitudinal field, we find that the effective Floquet Hamiltonian contains terms which may lead to a global charging of the battery. However, we do not find any quantum advantage in the charging power, thus demonstrating that global charging is only a necessary and not sufficient condition for achieving quantum advantage.