Article Dans Une Revue Physical Review Letters Année : 2017

Confinement in the bulk, deconfinement on the wall: infrared equivalence between compactified QCD and quantum magnets

Hui Shao
Anders Sandvik
  • Fonction : Auteur
Mithat Unsal
  • Fonction : Auteur

Résumé

In a spontaneously dimerized quantum antiferromagnet, spin-1/2 excitations (spinons) are confined in pairs by strings akin to those confining quarks in non-Abelian gauge theories. The system has multiple degenerate ground states (vacua) and domain walls between regions of different vacua. For two vacua, we demonstrate that spinons on a domain wall are liberated, in a mechanism strikingly similar to domain-wall deconfinement of quarks in variants of quantum chromodynamics. This observation not only establishes a novel phenomenon in quantum magnetism, but also provides a new direct link between particle physics and condensed-matter physics. The analogy opens doors to improving our understanding of particle confinement and deconfinement by computational and experimental studies in quantum magnetism.

Dates et versions

hal-01645186 , version 1 (23-11-2017)

Identifiants

Citer

Tin Sulejmanpasic, Hui Shao, Anders Sandvik, Mithat Unsal. Confinement in the bulk, deconfinement on the wall: infrared equivalence between compactified QCD and quantum magnets. Physical Review Letters, 2017, 119 (9), pp.091601. ⟨10.1103/PhysRevLett.119.091601⟩. ⟨hal-01645186⟩

Collections

85 Consultations
0 Téléchargements

Altmetric

Partager

  • More