Quantum gravity corrections to the conformally coupled scalar self-mass-squared on de Sitter background

Sibel Boran, E. O. Kahya, and Sohyun Park
Phys. Rev. D 90, 124054 – Published 18 December 2014

Abstract

We evaluate one-loop quantum gravity corrections to the conformally coupled (CC) scalar self-mass-squared on a locally de Sitter background. In this paper we consider only the conformal-conformal interaction part of the self-mass-squared. This complements the minimal-minimal part worked out in the previous paper [E. O. Kahya and R. P. Woodard, Phys. Rev. D 76, 124005 (2007)], and we add the minimal-conformal part in a follow-up paper to complete the full self-mass-squared at one-loop order. The computation is performed using dimensional regularization, and the results are fully renormalized by absorbing divergences with counterterms. The finite results can give rise to quantum corrections to the CC scalar mode functions and therefore to their power spectra.

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  • Received 30 September 2014

DOI:https://doi.org/10.1103/PhysRevD.90.124054

© 2014 American Physical Society

Authors & Affiliations

Sibel Boran* and E. O. Kahya

  • Department of Physics, İstanbul Technical University, Maslak, 34469 Istanbul, Turkey

Sohyun Park

  • Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park, Pennsylvania 16802, USA

  • *borans@itu.edu.tr
  • eokahya@itu.edu.tr
  • spark@gravity.psu.edu

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Issue

Vol. 90, Iss. 12 — 15 December 2014

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