Year: 2015
Type: article
Abstract: Correlation functions of two long-wavelength modes with several short-wavelength modes are shown to be related to lower order correlation functions, using the background wave method, and independently, by exploiting symmetries of the wavefunction of the Universe. These soft identities follow from the non-linear extension of the adiabatic modes of Weinberg, and their generalization by Hinterbichler et al. The extension is shown to be unique. A few checks of the identities are presented.
Authors: Mehrdad Mirbabayi, Matias Zaldarriaga
Institution: Institute for Advanced Study
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,290
Funder: National Science Foundation
OpenAlex ID: W2057955884