Experimental observation and application of the genuine Quantum Mpemba Effect
Fuente:
arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866909911185620992 |
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| author | Schnepper, Bruno P. de Oliveira, Jefferson L. D. Vieira, Carlos H. S. Zawadzki, Krissia Serra, Roberto M. |
| author_facet | Schnepper, Bruno P. de Oliveira, Jefferson L. D. Vieira, Carlos H. S. Zawadzki, Krissia Serra, Roberto M. |
| contents | Coherence is an inherently quantum property that deeply affects microscopic processes, including thermalization phenomena. A striking example is the quantum Mpemba effect (QME), in which a system can exhibit anomalous relaxation, thermalizing faster from a state initially farther from equilibrium than from one closer. Here, we experimentally investigate the genuine QME and observe how the dynamics of a spin-1/2 system interacting with a heat sink can be sped-up to equilibrium. Furthermore, we apply the QME in a quantum Otto refrigerator, thereby increasing its cooling power. This proof-of-concept experiment unveils new practical paths for improving quantum thermal tasks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_14552 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Experimental observation and application of the genuine Quantum Mpemba Effect Schnepper, Bruno P. de Oliveira, Jefferson L. D. Vieira, Carlos H. S. Zawadzki, Krissia Serra, Roberto M. Quantum Physics Coherence is an inherently quantum property that deeply affects microscopic processes, including thermalization phenomena. A striking example is the quantum Mpemba effect (QME), in which a system can exhibit anomalous relaxation, thermalizing faster from a state initially farther from equilibrium than from one closer. Here, we experimentally investigate the genuine QME and observe how the dynamics of a spin-1/2 system interacting with a heat sink can be sped-up to equilibrium. Furthermore, we apply the QME in a quantum Otto refrigerator, thereby increasing its cooling power. This proof-of-concept experiment unveils new practical paths for improving quantum thermal tasks. |
| title | Experimental observation and application of the genuine Quantum Mpemba Effect |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2511.14552 |