Vacuum Polarization by a Magnetic Flux Tube at Finite Temperature in the Cosmic String Spacetime

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dc.creatorSpinelly, J.
dc.creatorde Mello, E. R. Bezerra
dc.date2007-04-16
dc.date2008-04-03
dc.date.accessioned2026-07-07T12:54:55Z
dc.date.available2026-07-07T12:54:55Z
dc.descriptionIn this paper we analyse the effect produced by the temperature in the vacuum polarization associated with charged massless scalar field in the presence of magnetic flux tube in the cosmic string spacetime. Three different configurations of magnetic fields are taken into account: $(i)$ a homogeneous field inside the tube, $(ii)$ a field proportional to $1/r$ and $(iii)$ a cylindrical shell with $δ$-function. In these three cases, the axis of the infinitely long tube of radius $R$ coincides with the cosmic string. Because the complexity of this analysis in the region inside the tube, we consider the thermal effect in the region outside. In order to develop this analysis, we construct the thermal Green function associated with this system for the three above mentioned situations considering points in the region outside the tube. We explicitly calculate in the high-temperature limit, the thermal average of the field square and the energy-momentum tensor.
dc.description16 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/0704.1990
dc.identifierhttp://arxiv.org/abs/0704.1990
dc.identifierInt.J.Mod.Phys.D18:53-70,2009
dc.identifierdoi:10.1142/S0218271809014273
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224104
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleVacuum Polarization by a Magnetic Flux Tube at Finite Temperature in the Cosmic String Spacetime
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