paper

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

arXiv:0801.1257 · doi:10.1088/1367-2630/10/4/043026

Abstract

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.

24 pages, with 8 eps figures - few minor corrections to the published version, e.g. anti-symmetrizing the matrix given by eq. (27)

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