Vacuum-polarization effects in global monopole space-times

The gravitational effect produced by a global monopole may be approximated by a solid deficit angle. As a consequence, the energy-momentum tensor of a quantum field will have a nonzero vacuum expectation value. Here we study this "vacuum-polarization effect" around the monopole. We find ex...

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Autores principales: Mazzitelli, Francisco Diego, Lousto, Carlos Oscar
Publicado: 1991
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562821_v43_n2_p468_Mazzitelli
http://hdl.handle.net/20.500.12110/paper_05562821_v43_n2_p468_Mazzitelli
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_05562821_v43_n2_p468_Mazzitelli
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spelling paper:paper_05562821_v43_n2_p468_Mazzitelli2023-06-08T15:42:09Z Vacuum-polarization effects in global monopole space-times Mazzitelli, Francisco Diego Lousto, Carlos Oscar The gravitational effect produced by a global monopole may be approximated by a solid deficit angle. As a consequence, the energy-momentum tensor of a quantum field will have a nonzero vacuum expectation value. Here we study this "vacuum-polarization effect" around the monopole. We find explicit expressions for both 2ren and Tren for a massless scalar field. The back reaction of the quantum field on the monopole metric is also investigated. © 1991 The American Physical Society. Fil:Mazzitelli, F.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lousto, C.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1991 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562821_v43_n2_p468_Mazzitelli http://hdl.handle.net/20.500.12110/paper_05562821_v43_n2_p468_Mazzitelli
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description The gravitational effect produced by a global monopole may be approximated by a solid deficit angle. As a consequence, the energy-momentum tensor of a quantum field will have a nonzero vacuum expectation value. Here we study this "vacuum-polarization effect" around the monopole. We find explicit expressions for both 2ren and Tren for a massless scalar field. The back reaction of the quantum field on the monopole metric is also investigated. © 1991 The American Physical Society.
author Mazzitelli, Francisco Diego
Lousto, Carlos Oscar
spellingShingle Mazzitelli, Francisco Diego
Lousto, Carlos Oscar
Vacuum-polarization effects in global monopole space-times
author_facet Mazzitelli, Francisco Diego
Lousto, Carlos Oscar
author_sort Mazzitelli, Francisco Diego
title Vacuum-polarization effects in global monopole space-times
title_short Vacuum-polarization effects in global monopole space-times
title_full Vacuum-polarization effects in global monopole space-times
title_fullStr Vacuum-polarization effects in global monopole space-times
title_full_unstemmed Vacuum-polarization effects in global monopole space-times
title_sort vacuum-polarization effects in global monopole space-times
publishDate 1991
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562821_v43_n2_p468_Mazzitelli
http://hdl.handle.net/20.500.12110/paper_05562821_v43_n2_p468_Mazzitelli
work_keys_str_mv AT mazzitellifranciscodiego vacuumpolarizationeffectsinglobalmonopolespacetimes
AT loustocarlososcar vacuumpolarizationeffectsinglobalmonopolespacetimes
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