Quantum battery based on quantum discord at room temperature

TL;DR

This paper proposes a practical quantum battery using a metal complex that stores energy via quantum discord at room temperature, enabling feasible energy storage and retrieval with non-destructive magnetic measurements.

Contribution

It introduces a new experimental platform for quantum batteries operating at ambient conditions using a specific metal complex.

Findings

Stores extractable work via quantum discord at room temperature

Recharges through thermalization with a reservoir

Work can be measured non-destructively via magnetic susceptibility

Abstract

The study of advanced quantum devices for energy storage has attracted the attention of the scientific community in the past few years. Although several theoretical progresses have been achieved recently, experimental proposals of platforms operating as quantum batteries under ambient conditions are still lacking. In this context, this work presents a feasible realization of a quantum battery in a carboxylate-based metal complex, which can store a finite amount of extractable work under the form of quantum discord at room temperature, and recharge by thermalization with a reservoir. Moreover, the stored work can be evaluated through non-destructive measurements of the compound's magnetic susceptibility. These results pave the way for the development of enhanced energy storage platforms through material engineering.