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Universality of the Volume Bound in Slow-Roll Eternal Inflation
Sergei Dubovsky, Leonardo Senatore, Giovanni Villadoro
It has recently been shown that in single field slow-roll inflation the total volume cannot grow by a factor larger than e^(S_dS/2) without becoming infinite. The bound is saturate…
(Small) Resonant non-Gaussianities: Signatures of a Discrete Shift Symmetry in the Effective Field Theory of Inflation
Siavosh R. Behbahani, Anatoly Dymarsky, Mehrdad Mirbabayi +1
We apply the Effective Field Theory of Inflation to study the case where the continuous shift symmetry of the Goldstone boson πis softly broken to a discrete subgroup. This case in…
Dissipative effects in the Effective Field Theory of Inflation
Diana Lopez Nacir, Rafael A. Porto, Leonardo Senatore +1
We generalize the effective field theory of single clock inflation to include dissipative effects. Working in unitary gauge we couple a set of composite operators in the effective…
New Sources of Gravitational Waves during Inflation
Leonardo Senatore, Eva Silverstein, Matias Zaldarriaga
We point out that detectable inflationary tensor modes can be generated by particle or string sources produced during inflation, consistently with the requirements for inflation an…
Galaxy Bias and non-Linear Structure Formation in General Relativity
Tobias Baldauf, Uros Seljak, Leonardo Senatore +1
Length scales probed by large scale structure surveys are becoming closer to the horizon scale. Further, it has been recently understood that non-Gaussianity in the initial conditi…