Thermal Pure Quantum States at Finite Temperature

被引：167

作者：

Sugiura, Sho ^{[1
]}

Shimizu, Akira ^{[1
]}

机构：

[1] Univ Tokyo, Dept Basic Sci, Meguro Ku, Tokyo 1538902, Japan

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.108.240401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An equilibrium state can be represented by a pure quantum state, which we call a thermal pure quantum (TPQ) state. We propose a new TPQ state and a simple method of obtaining it. A single realization of the TPQ state suffices for calculating all statistical-mechanical properties, including correlation functions and genuine thermodynamic variables, of a quantum system at finite temperature.

引用

页数：4

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