Why the Universe Started from a Low Entropy State

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dc.creatorHolman, R.
dc.creatorMersini-Houghton, L.
dc.date2005-11-09
dc.date2006-12-11
dc.date.accessioned2026-07-07T10:30:21Z
dc.date.available2026-07-07T10:30:21Z
dc.descriptionWe show that the inclusion of backreaction of massive long wavelengths imposes dynamical constraints on the allowed phase space of initial conditions for inflation, which results in a superselection rule for the initial conditions. Only high energy inflation is stable against collapse due to the gravitational instability of massive perturbations. We present arguments to the effect that the initial conditions problem {\it cannot} be meaningfully addressed by thermostatistics as far as the gravitational degrees of freedom are concerned. Rather, the choice of the initial conditions for the universe in the phase space and the emergence of an arrow of time have to be treated as a dynamic selection.
dc.description12 pages, 2 figs. Final version; agrees with accepted version in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-th/0511102
dc.identifierhttp://arxiv.org/abs/hep-th/0511102
dc.identifierPhys.Rev.D74:123510,2006
dc.identifierdoi:10.1103/PhysRevD.74.123510
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178104
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleWhy the Universe Started from a Low Entropy State
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