Dirac fields in a Bohm-Aharonov background and spectral boundary conditions

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dc.creatorBeneventano, C. G.
dc.creatorDe Francia, M.
dc.creatorSantangelo, E. M.
dc.date1998-11-27
dc.date.accessioned2026-07-07T04:25:39Z
dc.date.available2026-07-07T04:25:39Z
dc.descriptionWe study the problem of a Dirac field in the background of an Aharonov-Bohm flux string. We exclude the origin by imposing spectral boundary conditions at a finite radius then shrinked to zero. Thus, we obtain a behaviour of the eigenfunctions which is compatible with the self-adjointness of the radial Hamiltonian and the invariance under integer translations of the reduced flux. After confining the theory to a finite region, we check the consistency with the index theorem, and discuss the vacuum fermionic number and Casimir energy.
dc.descriptionTo appear in Proceedings of "Fourth Workshop on Quantum Field Theory under the influence of External Conditions"
dc.identifierhttps://arxiv.org/abs/hep-th/9811242
dc.identifierhttp://arxiv.org/abs/hep-th/9811242
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/55821
dc.subjectHigh Energy Physics - Theory
dc.titleDirac fields in a Bohm-Aharonov background and spectral boundary conditions
dc.typetext

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