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Deconfined criticality: generic first-order transition in the SU(2) symmetry case.

Authors
Type
Published Article
Journal
Physical review letters
Publication Date
Volume
101
Issue
5
Pages
50405–50405
Identifiers
PMID: 18764379
Source
Medline
License
Unknown

Abstract

Monte Carlo simulations of the SU(2)-symmetric deconfined critical point action reveal strong violations of scale invariance for the deconfinement transition. We find compelling evidence that the generic runaway renormalization flow of the gauge coupling is to a weak first-order transition, similar to the case of U(1) x U(1) symmetry. Our results imply that recent numeric studies of the Nèel antiferromagnet to valence bond solid quantum phase transition in SU(2)-symmetric models were not accurate enough in determining the nature of the transition.

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