Riemannian approach and cosmological singularity

We study the definition of the Feynman propagator for a free conformally coupled scalar field on a Robertson-Walker background, as the continuation to physical space of the single propagator of a Riemannian manifold. If the space-time has a cosmological singularity, a boundary condition is proposed...

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Publicado: 1984
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562821_v29_n8_p1609_Calzetta
http://hdl.handle.net/20.500.12110/paper_05562821_v29_n8_p1609_Calzetta
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_05562821_v29_n8_p1609_Calzetta
record_format dspace
spelling paper:paper_05562821_v29_n8_p1609_Calzetta2023-06-08T15:42:03Z Riemannian approach and cosmological singularity We study the definition of the Feynman propagator for a free conformally coupled scalar field on a Robertson-Walker background, as the continuation to physical space of the single propagator of a Riemannian manifold. If the space-time has a cosmological singularity, a boundary condition is proposed that leads to the definition of particle modes at the singularity. © 1984 The American Physical Society. 1984 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562821_v29_n8_p1609_Calzetta http://hdl.handle.net/20.500.12110/paper_05562821_v29_n8_p1609_Calzetta
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 study the definition of the Feynman propagator for a free conformally coupled scalar field on a Robertson-Walker background, as the continuation to physical space of the single propagator of a Riemannian manifold. If the space-time has a cosmological singularity, a boundary condition is proposed that leads to the definition of particle modes at the singularity. © 1984 The American Physical Society.
title Riemannian approach and cosmological singularity
spellingShingle Riemannian approach and cosmological singularity
title_short Riemannian approach and cosmological singularity
title_full Riemannian approach and cosmological singularity
title_fullStr Riemannian approach and cosmological singularity
title_full_unstemmed Riemannian approach and cosmological singularity
title_sort riemannian approach and cosmological singularity
publishDate 1984
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562821_v29_n8_p1609_Calzetta
http://hdl.handle.net/20.500.12110/paper_05562821_v29_n8_p1609_Calzetta
_version_ 1768543279999090688

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