Critical behavior of the S=3/2 antiferromagnetic Heisenberg chain

Preprint

12 March 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9603082

Abstract

Using the density-matrix renormalization-group technique we study the long-wavelength properties of the spin S=3/2 nearest-neighbor Heisenberg chain. We obtain an accurate value for the spin velocity v=3.8+- 0.02, in agreement with experiment. Our results show conclusively that the model belongs to the same universality class as the S=1/2 Heisenberg chain, with a conformal central charge c=1 and critical exponent eta=1

Keywords

ANTIFERROMAGNETIC HEISENBERG
MATRIX RENORMALIZATION
RENORMALIZATION GROUP
CRITICAL BEHAVIOR
HEISENBERG CHAIN
DENSITY MATRIX
CHAIN USING

All Related Versions

Version 1, 1996-03-12, ArXiv
Published version: Physical Review Letters, 76 (26), 4955.

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