Accelerating Quantum Relaxation via Temporary Reset: A Mpemba-Inspired Approach
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arXiv
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| Format: | Preprint |
| Published: |
2022
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| _version_ | 1866917019918532608 |
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| author | Bao, Ruicheng Hou, Zhonghuai |
| author_facet | Bao, Ruicheng Hou, Zhonghuai |
| contents | Slow relaxation processes spanning widely separated timescales pose fundamental challenges for probing steady-state properties and engineering functional quantum systems, such as quantum heat engines and quantum computing devices. We introduce a protocol that enables significant acceleration of relaxation in general Markovian open quantum systems by temporarily coupling the system to a reset channel, inspired by the Mpemba effect. Crucially, this acceleration persists even when the slowest decaying Lindbladian modes form complex-conjugate pairs. Unlike previous approaches, which typically target a single mode, our protocol may suppress multiple relaxation modes simultaneously. This framework provides a versatile and experimentally feasible tool for controlling relaxation timescales, with broad implications for quantum thermodynamics, computation, and state preparation. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2212_11170 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Accelerating Quantum Relaxation via Temporary Reset: A Mpemba-Inspired Approach Bao, Ruicheng Hou, Zhonghuai Quantum Physics Statistical Mechanics Slow relaxation processes spanning widely separated timescales pose fundamental challenges for probing steady-state properties and engineering functional quantum systems, such as quantum heat engines and quantum computing devices. We introduce a protocol that enables significant acceleration of relaxation in general Markovian open quantum systems by temporarily coupling the system to a reset channel, inspired by the Mpemba effect. Crucially, this acceleration persists even when the slowest decaying Lindbladian modes form complex-conjugate pairs. Unlike previous approaches, which typically target a single mode, our protocol may suppress multiple relaxation modes simultaneously. This framework provides a versatile and experimentally feasible tool for controlling relaxation timescales, with broad implications for quantum thermodynamics, computation, and state preparation. |
| title | Accelerating Quantum Relaxation via Temporary Reset: A Mpemba-Inspired Approach |
| topic | Quantum Physics Statistical Mechanics |
| url | https://arxiv.org/abs/2212.11170 |