18 citations · 27 across the 3 of their papers we have counts for
3 papers
formalism on the past light-cone
Giuseppe Fanizza, Giovanni Marozzi, Matheus Medeiros
We apply the gradient expansion approximation to the light-cone gauge, obtaining a separate universe picture at non-linear order in perturbation theory within this framework. There…
Gauge invariance on the light-cone: curvature perturbations and radiative degrees of freedom
Giuseppe Fanizza, Giovanni Marozzi, Matheus Medeiros
We derive the expressions on the observed light-cone for some relevant cosmological gauge invariant variables, such as the Mukhanov-Sasaki variable and - and - modes of the t…
The Cosmological Perturbation Theory on the Geodesic Light-Cone background
Giuseppe Fanizza, Giovanni Marozzi, Matheus Medeiros +1
Inspired by the fully non-linear Geodesic Light-Cone (GLC) gauge, we consider its analogous set of coordinates which describes the unperturbed Universe. Given this starting point,…