Date of Publication
8-1994
Document Type
Master's Thesis
Degree Name
Master of Science in Physics
Subject Categories
Physics
College
College of Science
Department/Unit
Physics
Thesis Adviser
Robert Roleda
Defense Panel Chair
Reuben Quiroga
Defense Panel Member
Emmanuel Rodulfo
Manuel Eugenio
Abstract/Summary
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.
Abstract Format
html
Language
English
Format
Accession Number
TG02242
Shelf Location
Archives, The Learning Commons, 12F Henry Sy Sr. Hall
Physical Description
74 leaves
Keywords
Pair production; Path integrals; Statistical physics; Spatial systems; Cosmic physics; Quantum theory
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Recommended Citation
Guevarra, J. S. (1994). 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). Retrieved from https://animorepository.dlsu.edu.ph/etd_masteral/1555
