Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/242837
Type: Artigo
Title: Emergent SU(3) symmetry in random spin-1 chains
Author: Quito, V. L.
Hoyos, J. A.
Miranda, E.
Abstract: We show that generic SU(2)-invariant random spin-1 chains have phases with an emergent SU(3) symmetry. We map out the full zero-temperature phase diagram and identify two different phases: (i) a conventional random-singlet phase (RSP) of strongly bound spin pairs [SU(3) "mesons"] and (ii) an unconventional RSP of bound SU(3) "baryons," which are formed, in the great majority, by spin trios located at random positions. The emergent SU(3) symmetry dictates that susceptibilities and correlation functions of both dipolar and quadrupolar spin operators have the same asymptotic behavior.
We show that generic SU(2)-invariant random spin-1 chains have phases with an emergent SU(3) symmetry. We map out the full zero-temperature phase diagram and identify two different phases: (i) a conventional random-singlet phase (RSP) of strongly bound spin pairs [SU(3) "mesons"] and (ii) an unconventional RSP of bound SU(3) "baryons," which are formed, in the great majority, by spin trios located at random positions. The emergent SU(3) symmetry dictates that susceptibilities and correlation functions of both dipolar and quadrupolar spin operators have the same asymptotic behavior.
Subject: Magnetismo
Sistemas desordenados
Grupo de renormalização
Country: Estados Unidos
Editor: American Physical Society
Citation: Emergent Su(3) Symmetry In Random Spin-1 Chains. Amer Physical Soc, v. 115, p. OCT-2015.
Rights: aberto
Identifier DOI: 10.1103/PhysRevLett.115.167201
Address: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.115.167201
Date Issue: 2015
Appears in Collections:IFGW - Artigos e Outros Documentos

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