Nonreciprocal Quantum Batteries

Nonreciprocal Quantum Batteries

January 11, 2024 | B. Ahmadi, P. Mazurek, P. Horodecki, and S. Barzanjeh
This paper explores the use of nonreciprocal interactions to enhance energy storage in quantum batteries. Nonreciprocity, which arises from breaking time-reversal symmetry, enables directional energy flow and efficient noise suppression. By introducing nonreciprocity through reservoir engineering during the charging process, the paper demonstrates a significant increase in energy accumulation in a quantum battery compared to conventional systems. The nonreciprocal approach allows for a directed energy flow from the charger to the battery, resulting in a fourfold increase in battery energy. The study shows that a shared reservoir can establish optimal conditions where nonreciprocity enhances charging efficiency and energy storage. This effect is observed in the stationary limit and remains applicable even in overdamped coupling regimes, eliminating the need for precise temporal control. The proposed approach is feasible for implementation using current quantum circuits in photonics and superconducting systems. The results have implications for sensing, energy capture, and storage technologies, as well as for studying quantum thermodynamics. The paper also presents a detailed analysis of the dynamics of the system, showing that nonreciprocal charging leads to more efficient energy storage in quantum devices. The study demonstrates that nonreciprocal charging can outperform reciprocal charging in both the stationary and transient regimes, particularly when the battery's damping rate is significantly lower than the charger's. The results highlight the potential of nonreciprocal interactions in enhancing energy storage in quantum systems.This paper explores the use of nonreciprocal interactions to enhance energy storage in quantum batteries. Nonreciprocity, which arises from breaking time-reversal symmetry, enables directional energy flow and efficient noise suppression. By introducing nonreciprocity through reservoir engineering during the charging process, the paper demonstrates a significant increase in energy accumulation in a quantum battery compared to conventional systems. The nonreciprocal approach allows for a directed energy flow from the charger to the battery, resulting in a fourfold increase in battery energy. The study shows that a shared reservoir can establish optimal conditions where nonreciprocity enhances charging efficiency and energy storage. This effect is observed in the stationary limit and remains applicable even in overdamped coupling regimes, eliminating the need for precise temporal control. The proposed approach is feasible for implementation using current quantum circuits in photonics and superconducting systems. The results have implications for sensing, energy capture, and storage technologies, as well as for studying quantum thermodynamics. The paper also presents a detailed analysis of the dynamics of the system, showing that nonreciprocal charging leads to more efficient energy storage in quantum devices. The study demonstrates that nonreciprocal charging can outperform reciprocal charging in both the stationary and transient regimes, particularly when the battery's damping rate is significantly lower than the charger's. The results highlight the potential of nonreciprocal interactions in enhancing energy storage in quantum systems.
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