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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todo:paper_05562821_v43_n2_p468_Mazzitelli2023-10-03T15:35:21Z Vacuum-polarization effects in global monopole space-times Mazzitelli, F.D. Lousto, C.O. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_05562821_v43_n2_p468_Mazzitelli |
| institution |
Universidad de Buenos Aires |
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I-28 |
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R-134 |
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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. |
| format |
JOUR |
| author |
Mazzitelli, F.D. Lousto, C.O. |
| spellingShingle |
Mazzitelli, F.D. Lousto, C.O. Vacuum-polarization effects in global monopole space-times |
| author_facet |
Mazzitelli, F.D. Lousto, C.O. |
| author_sort |
Mazzitelli, F.D. |
| 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 |
| url |
http://hdl.handle.net/20.500.12110/paper_05562821_v43_n2_p468_Mazzitelli |
| work_keys_str_mv |
AT mazzitellifd vacuumpolarizationeffectsinglobalmonopolespacetimes AT loustoco vacuumpolarizationeffectsinglobalmonopolespacetimes |
| _version_ |
1807317348280958976 |