Infrared-finite graviton two-point function in static de Sitter space

Rafael P. Bernar, Luís C. B. Crispino, and Atsushi Higuchi
Phys. Rev. D 90, 024045 – Published 18 July 2014

Abstract

We study quantum gravitational perturbations in the static patch of de Sitter space. In particular, we determine the symplectic inner product of these perturbations and use it to write down the graviton two-point function in the state analogous to the Bunch-Davies vacuum in a certain gauge. We find this two-point function to be infrared-finite and time-translation invariant.

  • Received 16 May 2014

DOI:https://doi.org/10.1103/PhysRevD.90.024045

© 2014 American Physical Society

Authors & Affiliations

Rafael P. Bernar1,*, Luís C. B. Crispino1,†, and Atsushi Higuchi2,‡

  • 1Faculdade de Física, Universidade Federal do Pará, 66075-110 Belém, Pará, Brazil
  • 2Department of Mathematics, University of York, YO10 5DD Heslington, York, United Kingdom

  • *rafael.bernar@icen.ufpa.br
  • crispino@ufpa.br
  • atsushi.higuchi@york.ac.uk

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Issue

Vol. 90, Iss. 2 — 15 July 2014

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