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arXiv:cond-mat/9810075 · Journal of Physics A Mathematical and General

Finite-size scaling for the spin-Heisenberg antiferromagnetic chain

Victor Barzykin, Ian K. Affleck

Published Jan 1, 1999• 23 citations
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Abstract

Corrections to the asymptotic correlation function in a Heisenberg spin- 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.

DOI
10.1088/0305-4470/32/6/001

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