Path integral approach to particle production in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t) = a₀cosh(αt) and a(t) = a₀sin(αt)

Authors

Jonathan S. Guevarra ⋅ PH Physics Department, De La Salle University
Robert Roleda ⋅ PH Physics Department, De La Salle University

Abstract

Pair production of free scalar particles in spatially-flat Robertson-Walker spacetime described by the metric
ds² = −dt² + a(t)[dx₁² + dx₂² +dx₃²]
with cosmic scale factors a(t) = a₀cosh(αt) and a(t) = a₀sin(αt) was investigated. These cosmic scale factors correspond to the "open" universe and "closed" universe models, respectively. (The description is based on the behavior of expansion and not on the geometry of spacetime).

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Issue

1994: Proceedings of the 12th National Physics Congress of the Samahang Pisika ng Pilipinas

15-16 October 1994, De La Salle University, Manila

Article ID

SPP-1994-TP-06

Section

Theoretical Physics

Published

1994-10-15

How to Cite

[1]

JS Guevarra and R Roleda, Path integral approach to particle production in a spatially-flat Robertson-Walker spacetime with cosmic scale factors a(t) = a0cosh(αt) and a(t) = a0sin(αt), Proceedings of the Samahang Pisika ng Pilipinas 12, SPP-1994-TP-06 (1994). URL: https://proceedings.spp-online.org/article/view/SPP-1994-TP-06.