2017 Fiscal Year Final Research Report
Transport Dynamics in Nonequilibrium Quantum Systems
| Project Area | Synergy of Fluctuation and Structure:Foundation of Universal Laws in Nonequilibrium Systems |
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| Project/Area Number |
25103003
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| Research Category |
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
沙川 貴大 東京大学, 大学院工学系研究科(工学部), 准教授 (60610805)
齊藤 圭司 慶應義塾大学, 理工学部(矢上), 教授 (90312983)
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| Project Period (FY) |
2013-06-28 – 2018-03-31
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| Keywords | ゆらぎ / 非平衡雑音 / エントロピー / 量子情報 / 熱輸送 / 量子多体系 |
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| Outline of Final Research Achievements |
Mesoscopic systems offer us an ideal unique opportunity to explorer non-equilibrium quantum many-body effects in a tunable and precise way, as we can continuously tune them from equilibrium to out-of-equilibrium. We performed experimental and theoretical study for mesoscopic systems in order to construct new methods to deal with their non-equilibrium dynamics. Last five years, we have experimentally clarified the universality of non-equilibrium fluctuations in strongly correlated quantum liquids and the current fluctuations induced by nonequilibrium spin accumulation. Theoretically, we successfully addressed the energy absorption and generic relaxation in periodically driven quantum systems, the universal trade-off relation between power and efficiency for heat engines, fluctuation theorem for many-body pure quantum states, and so on. Our achievements will contribute to deepen our understanding on non-equilibrium dynamics of quantum many-body systems through quantification of them.
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| Free Research Field |
量子物性
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