401 citations · 3.9k across the 71 of their papers we have counts for
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A Modal Approach to the Numerical Calculation of Primordial non-Gaussianities
Hiroyuki Funakoshi, Sébastien Renaux-Petel
We propose a new method to numerically calculate higher-order correlation functions of primordial fluctuations generated from any early-universe scenario. Our key-starting point is…
Universality in Multifield Inflation from String Theory
Sébastien Renaux-Petel
We develop a numerical statistical method to study linear cosmological fluctuations in inflationary scenarios with multiple fields, and apply it to an ensemble of six-field inflect…
A Statistical Approach to Multifield Inflation: Many-field Perturbations Beyond Slow Roll
Liam McAllister, Sébastien Renaux-Petel, Gang Xu
We study multifield contributions to the scalar power spectrum in an ensemble of six-field inflationary models obtained in string theory. We identify examples in which inflation oc…
Massive Gravity on de Sitter and Unique Candidate for Partially Massless Gravity
Claudia de Rham, Sebastien Renaux-Petel
We derive the decoupling limit of Massive Gravity on de Sitter in an arbitrary number of space-time dimensions d. By embedding d-dimensional de Sitter into d+1-dimensional Minkowsk…