209 citations · 1.5k across the 29 of their papers we have counts for
5 papers · 1 filter
Galilean symmetry in the effective theory of inflation: new shapes of non-Gaussianity
Paolo Creminelli, Guido D'Amico, Marcello Musso +2
We study the consequences of imposing an approximate Galilean symmetry on the Effective Theory of Inflation, the theory of small perturbations around the inflationary background. T…
A new diagrammatic representation for correlation functions in the in-in formalism
Marcello Musso
In this paper we provide an alternative method to compute correlation functions in the in-in formalism, with a modified set of Feynman rules to compute loop corrections. The diagra…
On the Reliability of the Langevin Pertubative Solution in Stochastic Inflation
Jerome Martin, Marcello Musso
A method to estimate the reliability of a perturbative expansion of the stochastic inflationary Langevin equation is presented and discussed. The method is applied to various infla…
Solving Stochastic Inflation for Arbitrary Potentials
Jerome Martin, Marcello Musso
A perturbative method for solving the Langevin equation of inflationary cosmology in presence of backreaction is presented. In the Gaussian approximation, the method permits an exp…
Influence of Super-Horizon Scales on Cosmological Observables Generated during Inflation
Sabino Matarrese, Marcello A. Musso, Antonio Riotto
Using the techniques of out-of-equilibrium field theory, we study the influence on the properties of cosmological perturbations generated during inflation on observable scales comi…