On the Transfer of Adiabatic Fluctuations through a Nonsingular Cosmological Bounce

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dc.creatorAlexander, Stephon
dc.creatorBiswas, Tirthabir
dc.creatorBrandenberger, Robert H.
dc.date2007-07-31
dc.date2008-07-30
dc.date.accessioned2026-07-07T09:53:22Z
dc.date.available2026-07-07T09:53:22Z
dc.descriptionWe study the transfer of cosmological perturbations through a nonsingular cosmological bounce in a special model in which the parameters of the bounce and the equation of state of matter are chosen such as to allow for an exact calculation of the evolution of the fluctuations. We find that the growing mode of the metric fluctuations in the contracting phase goes over into the growing mode in the expanding phase, a result which is different from what is obtained in analyses in which fluctuations are matched at a singular hypersurface. Consequences for Ekpyrotic cosmology are discussed in a limit when the equation of state of a fluid becomes large.
dc.descriptionDiscussion on Mukhanov variable and curvature perturbation added
dc.identifierhttps://arxiv.org/abs/0707.4679
dc.identifierhttp://arxiv.org/abs/0707.4679
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/165927
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleOn the Transfer of Adiabatic Fluctuations through a Nonsingular Cosmological Bounce
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