Initial Conditions for Inflation View Full Text


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Article Info

DATE

2002-11-19

AUTHORS

Nemanja Kaloper, Matthew Kleban, Albion Lawrence, Stephen Shenker, Leonard Susskind

ABSTRACT

Free scalar fields in de Sitter space have a one-parameter family of states invariant under the de Sitter group, including the standard thermal vacuum. We show that, except for the thermal vacuum, these states are unphysical when gravitational interactions are included. We apply these observations to the quantum state of the inflaton, and find that at best, dramatic fine tuning is required for states other than the thermal vacuum to lead to observable features in the CMBR anisotropy. More... »

PAGES

037

References to SciGraph publications

  • 2002-10-02. Disturbing Implications of a Cosmological Constant in JOURNAL OF HIGH ENERGY PHYSICS
  • 1996-09. Micro-local approach to the Hadamard condition in quantum field theory on curved space-time in COMMUNICATIONS IN MATHEMATICAL PHYSICS
  • 2002-07-17. Inflation, holography, and the choice of vacuum in de Sitter space in JOURNAL OF HIGH ENERGY PHYSICS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1088/1126-6708/2002/11/037

    DOI

    http://dx.doi.org/10.1088/1126-6708/2002/11/037

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1035443830


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