Integral representation of the density matrix of the XXZ chain at finite temperatures
Integral representation of the density matrix of the XXZ chain at finite temperatures
复制标题
有限温度下 XXZ 链密度矩阵的积分表示
DOI:
10.1088/0305-4470/38/9/001
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发表时间:
2004
期刊:
影响因子:
--
通讯作者:
A. Seel
中科院分区:
文献类型:
--
作者:
F. Gohmann;A. Klumper;A. Seel
We present an integral formula for the density matrix of a finite segment of the infinitely long spin- XXZ chain. This formula is valid for any temperature and any longitudinal magnetic field.