Late-time structure of the Bunch-Davies de Sitter wavefunction
Author(s)Anninos, Dionysios; Anous, Tarek; Freedman, Daniel Z.; Konstantinidis, George
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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.
DepartmentMassachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Mathematics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal of Cosmology and Astroparticle Physics
Institute of Physics Publishing/SISSA
Anninos, Dionysios, Tarek Anous, Daniel Z. Freedman, and George Konstantinidis. “Late-Time Structure of the Bunch-Davies de Sitter Wavefunction.” Journal of Cosmology and Astroparticle Physics 2015, no. 11 (November 30, 2015): 048–048.
Final published version