Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions

We consider the semiclassical Einstein equations (SEE) in the presence of a quantum scalar field with self-interaction λφ4. Working in the Hartree truncation of the two-particle irreducible effective action, we compute the vacuum expectation value of the energy-momentum tensor of the scalar field, w...

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Autores principales: López Nacir, Diana Laura, Mazzitelli, Francisco Diego
Publicado: 2014
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v89_n8_p_LopezNacir
http://hdl.handle.net/20.500.12110/paper_15507998_v89_n8_p_LopezNacir
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paper:paper_15507998_v89_n8_p_LopezNacir2023-06-08T16:22:46Z Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions López Nacir, Diana Laura Mazzitelli, Francisco Diego We consider the semiclassical Einstein equations (SEE) in the presence of a quantum scalar field with self-interaction λφ4. Working in the Hartree truncation of the two-particle irreducible effective action, we compute the vacuum expectation value of the energy-momentum tensor of the scalar field, which acts as a source of the SEE. We obtain the renormalized SEE by implementing a consistent renormalization procedure. We apply our results to find self-consistent de Sitter solutions to the SEE in situations with or without spontaneous breaking of the Z2-symmetry. © 2014 American Physical Society. Fil:López Nacir, D.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mazzitelli, F.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v89_n8_p_LopezNacir http://hdl.handle.net/20.500.12110/paper_15507998_v89_n8_p_LopezNacir
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We consider the semiclassical Einstein equations (SEE) in the presence of a quantum scalar field with self-interaction λφ4. Working in the Hartree truncation of the two-particle irreducible effective action, we compute the vacuum expectation value of the energy-momentum tensor of the scalar field, which acts as a source of the SEE. We obtain the renormalized SEE by implementing a consistent renormalization procedure. We apply our results to find self-consistent de Sitter solutions to the SEE in situations with or without spontaneous breaking of the Z2-symmetry. © 2014 American Physical Society.
author López Nacir, Diana Laura
Mazzitelli, Francisco Diego
spellingShingle López Nacir, Diana Laura
Mazzitelli, Francisco Diego
Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions
author_facet López Nacir, Diana Laura
Mazzitelli, Francisco Diego
author_sort López Nacir, Diana Laura
title Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions
title_short Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions
title_full Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions
title_fullStr Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions
title_full_unstemmed Hartree approximation in curved spacetimes revisited. II. the semiclassical Einstein equations and de Sitter self-consistent solutions
title_sort hartree approximation in curved spacetimes revisited. ii. the semiclassical einstein equations and de sitter self-consistent solutions
publishDate 2014
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v89_n8_p_LopezNacir
http://hdl.handle.net/20.500.12110/paper_15507998_v89_n8_p_LopezNacir
work_keys_str_mv AT lopeznacirdianalaura hartreeapproximationincurvedspacetimesrevisitediithesemiclassicaleinsteinequationsanddesitterselfconsistentsolutions
AT mazzitellifranciscodiego hartreeapproximationincurvedspacetimesrevisitediithesemiclassicaleinsteinequationsanddesitterselfconsistentsolutions
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