Nonreciprocal open quantum battery network in a photonic waveguide array
Phys. Rev. A 111, 063520 – Published 20 June, 2025
DOI: https://doi.org/10.1103/fn1b-2m9g
Abstract
Quantum batteries (QBs) exhibit remarkable charging power and energy potential, suggesting quantum benefits in thermodynamics. However, they face challenges like decoherence, low efficiency, and limited saturation. In this study, we explore the nonreciprocal open quantum batteries network (NOQBN), integrated with photonic waveguide arrays. By leveraging unidirectional waveguide nonreciprocities and reservoir engineering, we achieve targeted energy transfer, where QBs' higher dissipation rates compared to optical charger modes enhance charging energy, but reduce the ergotropy of the NOQBN. Results reveal that collective charging boosts QBs' ergotropy and power output, outperforming isolated QB systems. Moreover, by challenging traditional reciprocal charger-battery paradigms, we successfully adjust environmental dissipation to enhance nonreciprocity, thereby improving energy storage efficiency. Crucially, optimizing the correlation length between QBs within the network further enhances their storage capacity. The NOQBN's nonreciprocal dynamics pioneers a new approach to quantum energy storage, paving the way for applications in driven-dissipative photonic networks and inspiring the development of advanced, integrated nonreciprocal quantum energy devices. This work advances our theoretical understanding of QB networks and provides practical design principles for highly efficient quantum energy devices.
