Rotor spectra, berry phases, and monopole fields: From antiferromagnets to QCD

S. Chandrasekharan, F. J. Jiang, M. Pepe, U. J. Wiese

研究成果: 雜誌貢獻文章

10 引文 斯高帕斯(Scopus)

摘要

The order parameter of a finite system with a spontaneously broken continuous global symmetry acts as a quantum mechanical rotor. Both antiferromagnets with a spontaneously broken SU(2)s spin symmetry and massless QCD with a broken SU(2)L×SU(2)R chiral symmetry have rotor spectra when considered in a finite volume. When an electron or hole is doped into an antiferromagnet or when a nucleon is propagating through the QCD vacuum, a Berry phase arises from a monopole field and the angular momentum of the rotor is quantized in half-integer units.

原文英語
文章編號077901
期刊Physical Review D - Particles, Fields, Gravitation and Cosmology
78
發行號7
DOIs
出版狀態已發佈 - 2008 十月 21

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

指紋 深入研究「Rotor spectra, berry phases, and monopole fields: From antiferromagnets to QCD」主題。共同形成了獨特的指紋。

  • 引用此