Canonical Quantum Mpemba Effect in a Dissipative Qubit
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866914166160228352 |
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| author | Li, Xingli Li, Yan Yan, Yangqian |
| author_facet | Li, Xingli Li, Yan Yan, Yangqian |
| contents | The Mpemba effect, where a hotter system cools faster than a colder one under otherwise identical conditions, has been extensively studied in classical systems. In this work, we present the quantum analogue of the Mpemba effect using a dissipative qubit, which is referred to as the canonical quantum Mpemba effect. We demonstrate that, under the identical conditions, the relaxation dynamics of a qubit initialized in a thermal state with a higher temperature can be exponentially faster than those of a colder thermal state. Strikingly, this acceleration is determined solely by the initial temperature of the system, independent of other parameters. The relaxation is confirmed to be a genuine cooling process via the effective steady state temperature, mirroring its classical counterpart. Last, we propose a practical classical quantum hybrid algorithmic quantum circuit to realize this effect using superconducting qubits experimentally. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_16996 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Canonical Quantum Mpemba Effect in a Dissipative Qubit Li, Xingli Li, Yan Yan, Yangqian Quantum Physics The Mpemba effect, where a hotter system cools faster than a colder one under otherwise identical conditions, has been extensively studied in classical systems. In this work, we present the quantum analogue of the Mpemba effect using a dissipative qubit, which is referred to as the canonical quantum Mpemba effect. We demonstrate that, under the identical conditions, the relaxation dynamics of a qubit initialized in a thermal state with a higher temperature can be exponentially faster than those of a colder thermal state. Strikingly, this acceleration is determined solely by the initial temperature of the system, independent of other parameters. The relaxation is confirmed to be a genuine cooling process via the effective steady state temperature, mirroring its classical counterpart. Last, we propose a practical classical quantum hybrid algorithmic quantum circuit to realize this effect using superconducting qubits experimentally. |
| title | Canonical Quantum Mpemba Effect in a Dissipative Qubit |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2511.16996 |