2025/01/29 by Maryam Hadipour, Hadipour, Maryam, Negar Nikdel Yousefi +7 · 2 citations
Computer Science · Physics and Astronomy · #Quantum Computing Algorithms and Architecture #Advanced Thermodynamics and Statistical Mechanics #Quantum and electron transport phenomena
paper · pdf · doi:10.48550/arxiv.2501.17526
We investigate the charging dynamics of a frequency-modulated quantum battery (QB) placed within a dissipative cavity environment. Our study focuses on the interaction of such a battery under both weak and strong coupling regimes, employing a model in which the quantum battery and charger are represented as frequency-modulated qubits indirectly coupled through a zero-temperature environment. It is demonstrated that both the modulation frequency and amplitude are crucial for optimizing the charging process and the ergotropy of the quantum battery. Specifically, high-amplitude, low-frequency modulation significantly enhances charging performance and work extraction in the strong coupling regime. As an intriguing result, it is deduced that modulation at very low frequencies leads to the emergence of energy storage and work extraction in the weak coupling regime. Such a result can never be achieved without modulation in the weak coupling regime. These results highlight the importance of adjusting modulation parameters to optimize the performance of quantum batteries for real-world applications in quantum technologies.