Search for Deconfined Criticality: SU(2) D\'{e}j\`{a} Vu

Autor:	Kuklov, A. B., Matsumoto, M., Prokof'ev, N. V., Svistunov, B. V., Troyer, M.
Rok vydání:	2008
Předmět:	Condensed Matter - Statistical Mechanics Condensed Matter - Strongly Correlated Electrons
Druh dokumentu:	Working Paper
Popis:	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 N\`{e}el antiferromagnet to valence bond solid quantum phase transition in SU(2)-symmetric models were not accurate enough in determining the nature of the transition. Comment: 4 revtex pages + 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0805.4334 Zobrazit plný text záznamu View this record from Arxiv