Correlation functions of an interacting spinless fermion model at finite temperature
Statistical Mechanics
2008-02-21 v2 Mathematical Physics
math.MP
Exactly Solvable and Integrable Systems
Abstract
We formulate correlation functions for a one-dimensional interacting spinless fermion model at finite temperature. By combination of a lattice path integral formulation for thermodynamics with the algebraic Bethe ansatz for fermion systems, the equal-time one-particle Green's function at arbitrary particle density is expressed as a multiple integral form. Our formula reproduces previously known results in the following three limits: the zero-temperature, the infinite-temperature and the free fermion limits.
Cite
@article{arxiv.0712.1399,
title = {Correlation functions of an interacting spinless fermion model at finite temperature},
author = {Kohei Motegi and Kazumitsu Sakai},
journal= {arXiv preprint arXiv:0712.1399},
year = {2008}
}
Comments
21 pages, v2: typos corrected, published version