Impact of disorder on the exciton dynamics of an open quantum battery.

Quantum batteries (QBs) have garnered attention as candidates for energy storage devices due to their inherent quantum advantages over classical electrochemical batteries. However, owing to the vulnerability of quantum resources to disorder, the ability of a charged QB to effectively store and discharge energy may be adversely affected by mechanical motions, thermal fluctuations, impurities, and defects in the QB. In this connection, we study the effects of (i) Gaussian static disorder, Gaussian white noise, and Gaussian colored noise in the onsite energies and electronic couplings and (ii) periodic oscillations in the electronic couplings on the exciton storage efficiency and exciton discharge rate of an open excitonic QB model-an open quantum system that stores and discharges excitons.