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Search for Deconfined Criticality: SU(2) D´ej`a Vu

B Kuklov, Masaki Matsumoto, Nikolay V. Prokof'ev, Boris V. Svistunov, Matthias Troyer

Published Jan 1, 2008• 0 citations
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Abstract

This is the pre-published version harvested from ArXiv.

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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)×\times×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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