Particle creation in a Robertson-Walker Universe revisited
F. Pascoal, C. Farina
TL;DR
This paper revisits the calculation of particle creation in a closed Robertson-Walker universe, providing updated estimates of particle number and energy, and highlighting discrepancies with recent studies.
Contribution
It offers a reanalysis of particle creation in a specific cosmological model, addressing inconsistencies in previous results.
Findings
Total particle number and energy are computed with revised methods.
Discrepancies identified between new results and recent literature.
Results suggest the need for further investigation into particle creation calculations.
Abstract
We reanalyze the problem of particle creation in a 3+1 spatially closed Robertson-Walker space-time. We compute the total number of particles produced by this non-stationary gravitational background as well as the corresponding total energy and find a slight discrepancy between our results and those recently obtained in the literature
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