TY - JOUR

T1 - Correlation functions of an interacting spinless fermion model at finite temperature

AU - Motegi, Kohei

AU - Sakai, Kazumitsu

PY - 2008/2/1

Y1 - 2008/2/1

N2 - 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.

AB - 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.

KW - Correlation functions

KW - Integrable spin chains (vertex models)

KW - Quantum integrability (Bethe ansatz)

KW - Solvable lattice models

UR - http://www.scopus.com/inward/record.url?scp=40549139774&partnerID=8YFLogxK

U2 - 10.1088/1742-5468/2008/02/P02005

DO - 10.1088/1742-5468/2008/02/P02005

M3 - Article

AN - SCOPUS:40549139774

VL - 2008

JO - Journal of Statistical Mechanics: Theory and Experiment

JF - Journal of Statistical Mechanics: Theory and Experiment

SN - 1742-5468

IS - 2

M1 - P02005

ER -