Typical pure states and nonequilibrium processes in quantum many-body systems

Takaaki Monnai, Ayumu Sugita

研究成果: Article査読

21 被引用数 (Scopus)

抄録

We show that it is possible to calculate equilibrium expectation values of many-body correlated quantities such as the characteristic functions and probability distributions with the use of only a single typical pure state. It also means that we can apply the pure state approach to Heisenberg operators and their spectral fluctuation, and hence to nonequilibrium processes starting from equilibrium. In particular, we can accurately analyze the full statistics of entropy production in nonequilibrium mesoscopic systems. In this way, we can access the full information on higher-order fluctuations in the large deviation regime far from equilibrium.

本文言語English
論文番号094001
ジャーナルJournal of the Physical Society of Japan
83
9
DOI
出版ステータスPublished - 2014 9 15

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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