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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2604.11876 |
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| _version_ | 1866913063824785408 |
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| author | Müller, Thomas Martin Pappalardi, Silvia Fazio, Rosario |
| author_facet | Müller, Thomas Martin Pappalardi, Silvia Fazio, Rosario |
| contents | Closed chaotic quantum systems relax after a quench into a Gibbs ensemble. At late times, the relaxation speed is determined by their conservation laws and hydrodynamics. As a result, there exist pairs of initial states which thermalize to the same ensemble, yet exhibit drastically different hydrodynamic relaxation. We show in two chaotic spin chains how this enables a simple and robust realization of the quantum Mpemba effect: a system initially closer to equilibrium relaxes slower than one that starts farther away, despite both approaching the same final state. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_11876 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Quantum Mpemba effect in chaotic systems with conservation laws Müller, Thomas Martin Pappalardi, Silvia Fazio, Rosario Quantum Physics Closed chaotic quantum systems relax after a quench into a Gibbs ensemble. At late times, the relaxation speed is determined by their conservation laws and hydrodynamics. As a result, there exist pairs of initial states which thermalize to the same ensemble, yet exhibit drastically different hydrodynamic relaxation. We show in two chaotic spin chains how this enables a simple and robust realization of the quantum Mpemba effect: a system initially closer to equilibrium relaxes slower than one that starts farther away, despite both approaching the same final state. |
| title | Quantum Mpemba effect in chaotic systems with conservation laws |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2604.11876 |