Fractionalization of angular momentum at finite temperature around a magnetic vortex

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dc.creatorSitenko, Yu. A.
dc.creatorVlasii, N. D.
dc.date2006-08-30
dc.date.accessioned2026-07-07T11:07:11Z
dc.date.available2026-07-07T11:07:11Z
dc.descriptionAmbiguities in the definition of angular momentum of a quantum-mechanical particle in the presence of a magnetic vortex are reviewed. We show that the long-standing problem of the adequate definition is resolved in the framework of the second-quantized theory at nonzero temperature. Planar relativistic Fermi gas in the background of a point-like magnetic vortex with arbitrary flux is considered, and we find thermal averages, quadratic fluctuations, and correlations of all observables, including angular momentum, in this system. The kinetic definition of angular momentum is picked out unambiguously by the requirement of plausible behaviour for the angular momentum fluctuation and its correlation with fermion number.
dc.description32 pages, submitted to Annals of Physics
dc.identifierhttps://arxiv.org/abs/hep-th/0608216
dc.identifierhttp://arxiv.org/abs/hep-th/0608216
dc.identifierAnnalsPhys.322:977-1004,2007
dc.identifierdoi:10.1016/j.aop.2006.05.006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/189760
dc.subjectHigh Energy Physics - Theory
dc.titleFractionalization of angular momentum at finite temperature around a magnetic vortex
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