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arXiv · 1212.3329

Consistency Relations for the Conformal Mechanism

Paolo Creminelli·Austin Joyce·Justin Khoury·Marko Simonović
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Abstract

We systematically derive the consistency relations associated to the non-linearly realized symmetries of theories with spontaneously broken conformal symmetry but with a linearly-realized de Sitter subalgebra. These identities relate (N+1)-point correlation functions with a soft external Goldstone to N-point functions. These relations have direct implications for the recently proposed conformal mechanism for generating density perturbations in the early universe. We study the observational consequences, in particular a novel one-loop contribution to the four-point function, relevant for the stochastic scale-dependent bias and CMB mu-distortion.

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Paolo Creminelli, Austin Joyce, Justin Khoury, Marko Simonović. 2013-04-11. Consistency Relations for the Conformal Mechanism. https://doi.org/10.1088/1475-7516%2F2013%2F04%2F020

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