Representing the graviton self-energy on de Sitter background

Katie E. Leonard*, Sohyun Park, Tom Prokopec, R. P. Woodard

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

We derive a noncovariant but simple representation for the self-energy of a conformally transformed graviton field on the cosmological patch of de Sitter. Our representation involves four structure functions, as opposed to the two that would be necessary for a manifestly de Sitter invariant representation. We work out what the four structure functions are for the one loop correction due to a massless, minimally coupled scalar and we employ the result to work out what happens to dynamical gravitons.

Original languageEnglish
Article number024032
Number of pages19
JournalPhysical Review. D, Particles, Fields, Gravitation and Cosmology
Volume90
Issue number2
DOIs
Publication statusPublished - 11 Jul 2014

Keywords

  • EXPECTATION VALUE FORMALISM
  • QUANTUM FIELD THEORY
  • UNIVERSE

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