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实验重建工作分布并研究封闭量子系统中的涨落关系。

Experimental reconstruction of work distribution and study of fluctuation relations in a closed quantum system.

机构信息

Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, R. Santa Adélia 166, 09210-170 Santo André, São Paulo, Brazil.

Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, 22290-180 Rio de Janeiro, Rio de Janeiro, Brazil.

出版信息

Phys Rev Lett. 2014 Oct 3;113(14):140601. doi: 10.1103/PhysRevLett.113.140601.

DOI:10.1103/PhysRevLett.113.140601
PMID:25325627
Abstract

We report the experimental reconstruction of the nonequilibrium work probability distribution in a closed quantum system, and the study of the corresponding quantum fluctuation relations. The experiment uses a liquid-state nuclear magnetic resonance platform that offers full control on the preparation and dynamics of the system. Our endeavors enable the characterization of the out-of-equilibrium dynamics of a quantum spin from a finite-time thermodynamics viewpoint.

摘要

我们报告了在封闭量子系统中对非平衡功概率分布的实验重建，并研究了相应的量子涨落关系。该实验使用了液态核磁共振平台，该平台可完全控制系统的制备和动力学。我们的努力从有限时间热力学的角度实现了对量子自旋的非平衡动力学的特征描述。

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