Path integral approach to particle production in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh (at) and a(t)= ao sin (at)

Pair production of free scalar particles in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh(at) and a(t)=ao sin(at), that represent an open and a closed universe, respectively, is investigated. The amplitude of pair production was determined by considering the prop...

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Main Author:	Guevarra, Jonathan S.
Format:	text
Language:	English
Published:	Animo Repository 1994
Subjects:	Pair production Path integrals Statistical physics Spatial systems Cosmic physics Quantum theory Physics
Online Access:	https://animorepository.dlsu.edu.ph/etd_masteral/1555 https://animorepository.dlsu.edu.ph/cgi/viewcontent.cgi?article=8393&context=etd_masteral
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Institution:	De La Salle University
Language:	English

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spelling	oai:animorepository.dlsu.edu.ph:etd_masteral-83932022-03-14T03:02:57Z Path integral approach to particle production in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh (at) and a(t)= ao sin (at) Guevarra, Jonathan S. Pair production of free scalar particles in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh(at) and a(t)=ao sin(at), that represent an open and a closed universe, respectively, is investigated. The amplitude of pair production was determined by considering the propagator of a particle to evolve from the time when an antiparticle was detected to the time when its corresponding particle was observed. The propagator for each scale factor was evaluated exactly using the Feyman path integral method. From this propagator, the production amplitude and the particle number were determined. Results were found to be consistent with previous studies. 1994-08-01T07:00:00Z text application/pdf https://animorepository.dlsu.edu.ph/etd_masteral/1555 https://animorepository.dlsu.edu.ph/cgi/viewcontent.cgi?article=8393&context=etd_masteral Master's Theses English Animo Repository Pair production Path integrals Statistical physics Spatial systems Cosmic physics Quantum theory Physics
institution	De La Salle University
building	De La Salle University Library
continent	Asia
country	Philippines Philippines
content_provider	De La Salle University Library
collection	DLSU Institutional Repository
language	English
topic	Pair production Path integrals Statistical physics Spatial systems Cosmic physics Quantum theory Physics
spellingShingle	Pair production Path integrals Statistical physics Spatial systems Cosmic physics Quantum theory Physics Guevarra, Jonathan S. Path integral approach to particle production in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh (at) and a(t)= ao sin (at)
description	Pair production of free scalar particles in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh(at) and a(t)=ao sin(at), that represent an open and a closed universe, respectively, is investigated. The amplitude of pair production was determined by considering the propagator of a particle to evolve from the time when an antiparticle was detected to the time when its corresponding particle was observed. The propagator for each scale factor was evaluated exactly using the Feyman path integral method. From this propagator, the production amplitude and the particle number were determined. Results were found to be consistent with previous studies.
format	text
author	Guevarra, Jonathan S.
author_facet	Guevarra, Jonathan S.
author_sort	Guevarra, Jonathan S.
title	Path integral approach to particle production in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh (at) and a(t)= ao sin (at)
title_short	Path integral approach to particle production in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh (at) and a(t)= ao sin (at)
title_full	Path integral approach to particle production in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh (at) and a(t)= ao sin (at)
title_fullStr	Path integral approach to particle production in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh (at) and a(t)= ao sin (at)
title_full_unstemmed	Path integral approach to particle production in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh (at) and a(t)= ao sin (at)
title_sort	path integral approach to particle production in a spatially-flat robertson-walker spacetime with cosmic scale factors a(t)=ao cosh (at) and a(t)= ao sin (at)
publisher	Animo Repository
publishDate	1994
url	https://animorepository.dlsu.edu.ph/etd_masteral/1555 https://animorepository.dlsu.edu.ph/cgi/viewcontent.cgi?article=8393&context=etd_masteral
_version_	1728621145622577152

Path integral approach to particle production in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t)=ao cosh (at) and a(t)= ao sin (at)

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