Emergent SU(3) Symmetry in Random Spin-1 Chains

Autor(es)

Quito, V. L. ^[1] ; Hoyos, Jose A. ^[2] ; Miranda, E. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083859 Sao Paulo - Brazil

^[2] Univ Sao Paulo, Inst Fis Sao Carlos, BR-13560970 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physical Review Letters; v. 115, n. 16 OCT 14 2015.
• Citações Web of Science: 9
• Assunto(s): Sistemas desordenados Magnetismo

Resumo

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. (AU)

• Processo FAPESP: 09/17531-3 - Estudos de sistemas quânticos fortemente desordenados
• Beneficiário: Victor Luiz Quito
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto