Coherent catalyst induced stabilization of ergotropy in open quantum batteries
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arXiv
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866913164717719552 |
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| author | Zhuang, Ni-Ya Zhao, Shun-Cai |
| author_facet | Zhuang, Ni-Ya Zhao, Shun-Cai |
| contents | Environmental dissipation and thermal fluctuations fundamentally constrain the extractable work and long-time stability of open quantum batteries. To mitigate dissipation-induced energy degradation without external driving protocols, we propose a cavity-mediated hybrid quantum battery coupled to an auxiliary coherent qubit. Using the Lindblad master equation and ergotropy analysis, we show that coherent interference between different interaction channels generates a decoherence-free-like invariant subspace that suppresses relaxation-induced energy leakage and stabilizes the steady-state ergotropy. The resulting protection mechanism remains effective under strong dissipation and finite-temperature conditions, indicating that interference-assisted coherent control may provide a feasible strategy for robust quantum energy storage in nonequilibrium open systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_27442 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Coherent catalyst induced stabilization of ergotropy in open quantum batteries Zhuang, Ni-Ya Zhao, Shun-Cai Quantum Physics Environmental dissipation and thermal fluctuations fundamentally constrain the extractable work and long-time stability of open quantum batteries. To mitigate dissipation-induced energy degradation without external driving protocols, we propose a cavity-mediated hybrid quantum battery coupled to an auxiliary coherent qubit. Using the Lindblad master equation and ergotropy analysis, we show that coherent interference between different interaction channels generates a decoherence-free-like invariant subspace that suppresses relaxation-induced energy leakage and stabilizes the steady-state ergotropy. The resulting protection mechanism remains effective under strong dissipation and finite-temperature conditions, indicating that interference-assisted coherent control may provide a feasible strategy for robust quantum energy storage in nonequilibrium open systems. |
| title | Coherent catalyst induced stabilization of ergotropy in open quantum batteries |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2605.27442 |