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physrevlett.131.080402.pdf | 600.57 kB | Adobe PDF | 見る/開く |
タイトル: | Quantum Mpemba Effect in a Quantum Dot with Reservoirs |
著者: | Chatterjee, Amit Kumar Takada, Satoshi Hayakawa, Hisao https://orcid.org/0000-0003-3462-5562 (unconfirmed) |
著者名の別形: | 髙田, 智史 早川, 尚男 |
キーワード: | Nonequilibrium statistical mechanics Quantum quench Quantum dots Quantum master equation Statistical Physics & Thermodynamics |
発行日: | Aug-2023 |
出版者: | American Physical Society (APS) |
誌名: | Physical Review Letters |
巻: | 131 |
号: | 8 |
論文番号: | 080402 |
抄録: | We demonstrate the quantum Mpemba effect in a quantum dot coupled to two reservoirs, described by the Anderson model. We show that the system temperatures starting from two different initial values (hot and cold) cross each other at finite time (and thereby reverse their identities; i.e., hot becomes cold and vice versa) to generate thermal quantum Mpemba effect. The slowest relaxation mode believed to play the dominating role in Mpemba effect in Markovian systems does not contribute to such anomalous relaxation in the present model. In this connection, our analytical result provides necessary condition for producing quantum Mpemba effect in the density matrix elements of the quantum dot, as a combined effect of the remaining relaxation modes. |
記述: | Some like it hot: Hotter quantum systems can cool faster than initially colder equivalents. 京都大学プレスリリース. 2023-08-31. |
著作権等: | © 2023 American Physical Society |
URI: | http://hdl.handle.net/2433/286788 |
DOI(出版社版): | 10.1103/physrevlett.131.080402 |
関連リンク: | https://www.kyoto-u.ac.jp/en/research-news/2023-08-31 |
出現コレクション: | 学術雑誌掲載論文等 |
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