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Pure Gravitational Back-Reaction Observables

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 نشر من قبل Nicholas Tsamis
 تاريخ النشر 2013
  مجال البحث فيزياء
والبحث باللغة English
 تأليف N. C. Tsamis




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After discussing the various issues regarding and requirements on pure quantum gravitational observables in homogeneous-isotropic conditions, we construct a composite operator observable satisfying most of them. We also expand it to first order in the loop counting parameter and suggest it as a physical quantifier of gravitational back-reaction in an initially inflating cosmology.



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