Year: 2015
Type: article
Abstract: We examine the late time behavior of the Bunch-Davies wavefunction for interacting light fields in a de Sitter background. We use perturbative techniques developed in the framework of AdS/CFT, and analytically continue to compute tree and loop level contributions to the Bunch-Davies wavefunction. We consider self-interacting scalars of general mass, but focus especially on the massless and conformally coupled cases. We show that certain contributions grow logarithmically in conformal time both at tree and loop level. We also consider gauge fields and gravitons. The four-dimensional Fefferman-Graham expansion of classical asymptotically de Sitter solutions is used to show that the wavefunction contains no logarithmic growth in the pure graviton sector at tree level. Finally, assuming a holographic relation between the wavefunction and the partition function of a conformal field theory, we interpret the logarithmic growths in the language of conformal field theory.
Authors: Dionysios Anninos, Tarek Anous, Daniel Z. Freedman, George Konstantinidis
Institutions: Stanford University, Massachusetts Institute of Technology
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,290
Awards: RESEARCH IN HIGH ENERGY PHYSICS, G222768804, WARM LIQUID CALORIMETRY, FRONTEND ELECTRONICS, & SILICON DRIFT DETECTOR R&D FOR SSC., LABORATORY FOR NUCLEAR SCIENCE - HIGH ENERGY PHYSICS PROGRAM, LABORATORY FOR NUCLEAR SCIENCE - HIGH ENERGY PHYSICS PROGRAM, Research in Theoretical Elementary Particle Physics
OpenAlex ID: W1823058964