Finite-size scaling for the S=1/2 Heisenberg Antiferromagnetic Chain

Preprint

7 October 1998

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9810075

Abstract

Corrections to the asymptotic correlation function in a Heisenberg spin-1/2 antiferromagnetic spin chain are known to vanish slowly (logarithmically) as a function of the distance r or the chain size L. This leads to significant differences with numerical results. We calculate the sub-leading logarithmic corrections to the finite-size correlation function, using renormalization group improved perturbation theory, and compare the result with numerical data.

Keywords

HEISENBERG ANTIFERROMAGNETIC
ANTIFERROMAGNETIC CHAIN
ASYMPTOTIC CORRELATION
CORRELATION FUNCTION
PERTURBATION THEORY
CHAIN CORRECTIONS
FINITE SIZE

All Related Versions

Version 1, 1998-10-07, ArXiv
Published version: Journal of Physics A: General Physics, 32 (6), 867.

This publication has 0 references indexed in Scilit: