Exact large deviation function of spin current for the one dimensional XX spin chain with domain wall initial condition

Exact large deviation function of spin current for the one dimensional XX spin chain with domain wall initial condition
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具有畴壁初始条件的一维XX自旋链的自旋流精确大偏差函数

DOI：
10.1088/1742-5468/ab1dd6
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发表时间：
2019
期刊：
J. Stat. Mech.
影响因子：
--
通讯作者：
Tomohiro Sasamoto,
Tomohiro Sasamoto,
中科院分区：
--
文献类型：
--
作者：
Hiroki Moriya;Rikuo Nagao;Tomohiro Sasamoto,

文献摘要

相似文献

我们从磁畴壁初始条件开始研究一维 XX 自旋链的自旋流波动。电流的生成函数可以用贝塞尔核写成行列式。应用库仑气体法得到了大偏差函数的精确解析表达式。我们的结果还与 DMRG 计算结果进行了比较。
We investigate the fluctuations of the spin current for the one-dimensional XX spin chain starting from the domain wall initial condition. The generating function of the current is shown to be written as a determinant with the Bessel kernel. An exact analytical expression for the large deviation function is obtained by applying the Coulomb gas method. Our results are also compared with DMRG calculations.