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Particle creation in a Robertson-Walker Universe revisited
classification
✦ hep-th
keywords
creationparticlerobertson-walkertotalbackgroundclosedcomputecorresponding
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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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