Typical pure nonequilibrium steady states

Takaaki Monnai, Kazuya Yuasa

研究成果: Article査読

4 被引用数 (Scopus)

抄録

We show that typicality holds for a class of nonequilibrium systems, i.e., nonequilibrium steady states (NESSs): almost all the pure states properly sampled from a certain Hilbert space well represent a NESS and characterize its intrinsic thermal nature. We clarify the relevant Hilbert space from which the pure states are to be sampled, and construct practically all the typical pure NESSs. The scattering approach leads us to the natural extension of the typicality for equilibrium systems. Each pure NESS correctly yields the expectation values of observables given by the standard ensemble approach. It means that we can calculate the expectation values in a NESS with only a single pure NESS. We provide an explicit construction of the typical pure NESS for a model with two reservoirs, and see that it correctly reproduces the Landauer-type formula for the current flowing steadily between the reservoirs.

本文言語English
論文番号40006
ジャーナルEPL
107
4
DOI
出版ステータスPublished - 2014 8 1

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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