Why the Universe started from a low entropy state Public Deposited

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Creator
  • Holman, R.
  • Mersini-Houghton, Laura
    • Affiliation: College of Arts and Sciences, Department of Physics and Astronomy
Abstract
  • We 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 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.
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Resource type
  • Article
Rights statement
  • In Copyright
Journal title
  • Physical Review D
Journal volume
  • 74
Journal issue
  • 12
Language
  • English
Version
  • Postprint
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