Random perturbations to the ordered quantum antiferromagnetic ground state

1 September 1988

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 38 (7) , 5162-5165
https://doi.org/10.1103/physrevb.38.5162

Abstract

By means of a renormalization-group analysis, we show that for small randomness, random couplings are irrelevant and random fields are relevant for the long-distance properties of the quantum antiferromagnetic ground state in two dimensions.

Keywords

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