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arXiv 0801.1257quant-phcond-mat.stat-mechnlin.SI
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三次量子化:求解二次开放费米系统主方程的一般方法

Third quantization: a general method to solve master equations for quadratic open Fermi systems

Tomaz Prosen

摘要:

在一个4 n × 4 n矩阵对角化的条件下,求解了任意n个费米子二次系统的Lindblad主方程,条件是所有Lindblad浴算子在费米子变量中是线性的。本文将该方法应用于横向磁场中最近邻海森堡XY自旋1/2链的热输运和自旋输运的远平衡问题的非平衡定态的显式构造和渐近弛豫率的计算。

英文摘要:

The Lindblad master equation for an arbitrary quadratic system of n fermions is solved explicitly in terms of diagonalization of a 4n x 4n matrix, provided that all Lindblad bath operators are linear in the fermionic variables. The method is applied to the explicit construction of non-equilibrium steady states and the calculation of asymptotic relaxation rates in the far from equilibrium problem of heat and spin transport in a nearest neighbor Heisenberg XY spin 1/2 chain in a transverse magnetic field.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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