Dynamics of quantum battery capacity under Markovian channels
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916349901537280 |
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| author | Wang, Yao-Kun Ge, Li-Zhu Zhang, Tinggui Fei, Shao-Ming Wang, Zhi-Xi |
| author_facet | Wang, Yao-Kun Ge, Li-Zhu Zhang, Tinggui Fei, Shao-Ming Wang, Zhi-Xi |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_03797 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Dynamics of quantum battery capacity under Markovian channels Wang, Yao-Kun Ge, Li-Zhu Zhang, Tinggui Fei, Shao-Ming Wang, Zhi-Xi Quantum Physics 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. |
| title | Dynamics of quantum battery capacity under Markovian channels |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2408.03797 |