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arXiv · 2408.03797

Dynamics of quantum battery capacity under Markovian channels

Yao-Kun Wang·Li-Zhu Ge·Tinggui Zhang·Shao-Ming Fei·Zhi-Xi Wang
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Abstract

We study the dynamics of the quantum battery capacity for the Bell-diagonal states under Markovian channels on the first subsystem. We show that the capacity increases for special Bell-diagonal states under amplitude damping channel. The sudden death of the capacity occurs under depolarizing channel. We also investigate the capacity evolution of Bell-diagonal states under Markovian channels on the first subsystem $n$ times. It is shown that the capacity under depolarizing channel decreases initially, then increases for small $n$ and tend to zero for large $n$. We find that under bit flip channel and amplitude damping channel, the quantum battery capacity of special Bell-diagonal states tends to a constant for large $n$, namely, the frozen capacity occurs. The dynamics of the capacity of the Bell-diagonal states under two independent same type local Markovian channels is also studied.

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Yao-Kun Wang, Li-Zhu Ge, Tinggui Zhang, Shao-Ming Fei, Zhi-Xi Wang. 2024-08-07. Dynamics of quantum battery capacity under Markovian channels. https://arxiv.org/abs/2408.03797

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