Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2502.08665 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914514713182208 |
|---|---|
| author | Zhao, Shun-Cai Yang, Yi-Fan Zhuang, Ni-Ya |
| author_facet | Zhao, Shun-Cai Yang, Yi-Fan Zhuang, Ni-Ya |
| contents | Achieving rapid and stable energy storage in quantum batteries (QBs) remains a key challenge, particularly under strong system-environment coupling where non-Markovian effects become prominent. While most previous studies focus on weak coupling regimes, we propose a many-body QB model exhibiting collective charging and discharge suppression in a non-perturbative regime. The model adopts a $Λ$-type configuration where multiple battery units share a common excited state and have individual ground states, forming an effective collective structure. To accurately capture the dynamics under strong coupling, the system's time evolution is governed by a Redfield-type master equation tincorporating memory effects via a Debye spectral density. We quantify the stored energy using ergotropy and analyze the impact of tunneling, driving strength, spectral width, and environmental temperature on charging performance. Numerical simulations reveal that optimized driving and reservoir engineering can simultaneously achieve rapid and stable charging while suppressing energy leakage. These results provide theoretical insight into strong-coupling thermodynamics and guide the design of robust QB platforms using solid-state or atomic systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_08665 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Rapid and Stable Collective Charging and Discharge Suppression in Strongly Coupled Many-Body Quantum Batteries Zhao, Shun-Cai Yang, Yi-Fan Zhuang, Ni-Ya Quantum Physics Achieving rapid and stable energy storage in quantum batteries (QBs) remains a key challenge, particularly under strong system-environment coupling where non-Markovian effects become prominent. While most previous studies focus on weak coupling regimes, we propose a many-body QB model exhibiting collective charging and discharge suppression in a non-perturbative regime. The model adopts a $Λ$-type configuration where multiple battery units share a common excited state and have individual ground states, forming an effective collective structure. To accurately capture the dynamics under strong coupling, the system's time evolution is governed by a Redfield-type master equation tincorporating memory effects via a Debye spectral density. We quantify the stored energy using ergotropy and analyze the impact of tunneling, driving strength, spectral width, and environmental temperature on charging performance. Numerical simulations reveal that optimized driving and reservoir engineering can simultaneously achieve rapid and stable charging while suppressing energy leakage. These results provide theoretical insight into strong-coupling thermodynamics and guide the design of robust QB platforms using solid-state or atomic systems. |
| title | Rapid and Stable Collective Charging and Discharge Suppression in Strongly Coupled Many-Body Quantum Batteries |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2502.08665 |