Dynamical correlation functions of the XXZ model at finite temperature
Statistical Mechanics
2008-11-26 v4 High Energy Physics - Theory
Mathematical Physics
math.MP
Quantum Algebra
Exactly Solvable and Integrable Systems
Abstract
Combining a lattice path integral formulation for thermodynamics with the solution of the quantum inverse scattering problem for local spin operators, we derive a multiple integral representation for the time-dependent longitudinal correlation function of the spin-1/2 Heisenberg XXZ chain at finite temperature and in an external magnetic field. Our formula reproduces the previous results in the following three limits: the static, the zero-temperature and the XY limits.
Keywords
Cite
@article{arxiv.cond-mat/0703319,
title = {Dynamical correlation functions of the XXZ model at finite temperature},
author = {Kazumitsu Sakai},
journal= {arXiv preprint arXiv:cond-mat/0703319},
year = {2008}
}
Comments
22 pages, v4: typos corrected, published version