TY - JOUR
T1 - Rotor spectra, berry phases, and monopole fields
T2 - From antiferromagnets to QCD
AU - Chandrasekharan, S.
AU - Jiang, F. J.
AU - Pepe, M.
AU - Wiese, U. J.
N1 - Funding Information:
This work was supported by RO1grants (NS045627 and NS060680) from the US National Institutes of Health to K.Y., the US National Institutes of Health/National Institute on Aging Alzheimer’s Disease Research Centers (P50AG025688) grant to A.I.L., a grant from the National Natural Science Foundation of China (no. 81100958) to Z.Z., a grant from the National Natural Science Foundation of China (no. 91132305) to J.Z.W., a National Key Basic Research Program of China grant (2010CB945202) to Y.E.S. and a National Science Foundation of China grant (81330030) to L.C. and Y.E.S. We thank D. Weinshenker (Emory University) for tau P301S–transgenic mice, M. Asano (Kanazawa University) for Lgmn knockout mice, S. Kuegler (Max Planck Institute of Psychiatry) for pAAV vectors carrying tau GFP and C. Hales (Emory University) for technical support.
PY - 2008/10/21
Y1 - 2008/10/21
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevD.78.077901
DO - 10.1103/PhysRevD.78.077901
M3 - Article
AN - SCOPUS:55149113817
SN - 1550-7998
VL - 78
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
M1 - 077901
ER -