Quantum enhancement of a single quantum battery by repeated interactions with large spins
arXiv:2209.12498 · doi:10.1103/PhysRevE.106.054119
Abstract
A generalized collision model is developed to investigate coherent charging a single quantum battery by repeated interactions with many-atom large spins, where collective atom operators are adopted and the battery is modeled by a uniform energy ladder. For an initially empty battery, we derive analytical results of the average number of excitations and hence the charging power in the short-time limit. Our analytical results show that a faster charging and an increased amount of the power in the coherent protocol uniquely arise from the phase coherence of the atoms. Finally, we show that the charging power defined by the so-called ergotropy almost follows our analytical result, due to a nearly pure state of the battery in the short-time limit.
9 pages, 5 figures
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Cited by in corpus (7)
- Quantum battery based on dipole-dipole interaction and external driving field
- Enhancing the charging performance of an atomic quantum battery
- Quantum recharging by shortcut to adiabaticity
- Dissipative qutrit-mediated stable charging
- The evolution of quantum battery capacity of GHZ-like states under Markovian channels
- Quantum batteries in coherent Ising machine
- Asymptotic freedom in the dephased charging of quantum batteries