Work

The third structure function

Year: 2025

Type: article

Abstract: We re-consider the graviton self-energy induced by a loop of massless, minimally coupled scalars on de Sitter background. On flat space background it can be represented as a sum of two tensor differential operators acting on scalar structure functions. On a general background these differential operators can be constructed from the linearized Ricci scalar and the linearized Weyl tensor. However, in cosmology one requires a third contribution which we derive here.

Source: Classical and Quantum Gravity

DOI: 10.1088/1361-6382/adcfe9

Authors: S P Miao, N C Tsamis, R P Woodard, B Yesilyurt

Institutions: National Cheng Kung University, University of Crete, University of Florida

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, University of Florida, National Science and Technology Council

Award: Quantum Field Theory and Cosmology