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

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

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...

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Veröffentlicht in:Physical review letters 2008-08, Vol.101 (5), p.050405-050405, Article 050405
Hauptverfasser: Kuklov, A B, Matsumoto, M, Prokof'ev, N V, Svistunov, B V, Troyer, M
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creator Kuklov, A B
Matsumoto, M
Prokof'ev, N V
Svistunov, B V
Troyer, M
description 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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title Deconfined criticality: generic first-order transition in the SU(2) symmetry case
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