4 papers · 1 filter
Stochastic Inflation in Numerical Relativity
Yoann L. Launay, Gerasimos I. Rigopoulos, E. Paul S. Shellard
A set of 3+1 equations for stochastic inflation incorporating all metric and scalar matter degrees of freedom, first presented in previous work, are re-derived in a gauge invariant…
Bunch-Davies initial conditions and non-perturbative inflationary dynamics in Numerical Relativity
Yoann L. Launay, Gerasimos I. Rigopoulos, E. Paul S. Shellard
We show that it is possible to simulate realistic inhomogeneities during cosmological inflation with high precision using {Numerical Relativity}. Stochastic initial conditions are…
Quantitative classicality in cosmological interactions during inflation
Yoann L. Launay, Gerasimos I. Rigopoulos, E. Paul S. Shellard
We examine the classical and quantum evolution of inflationary cosmological perturbations from quantum initial conditions, using the on-shell and off-shell contributions to correla…
Fully-relativistic evolution of vacuum tensor inhomogeneities during inflation
Ericka Florio, E. Paul S. Shellard
We present a complete method for the initialisation and extraction of first-order inflationary tensor perturbations for fully relativistic simulations which incorporate gravitation…