47 citations · 84 across the 4 of their papers we have counts for
4 papers
xAct Implementation of the Theory of Cosmological Perturbation in Bianchi I Spacetimes
Ivan Agullo, Javier Olmedo, V. Sreenath
This paper presents a computational algorithm to derive the theory of linear gauge invariant perturbations on anisotropic cosmological spacetimes of the Bianchi I type. Our code is…
Anomalies in the CMB from a cosmic bounce
Ivan Agullo, Dimitrios Kranas, V. Sreenath
We explore a model of the early universe in which the inflationary epoch is preceded by a cosmic bounce, and argue that this scenario provides a common origin to several of the ano…
Quantum-to-classical transition and imprints of continuous spontaneous localization in classical bouncing universes
D. Jaffino Stargen, V. Sreenath, L. Sriramkumar
The perturbations in the early universe are generated as a result of the interplay between quantum field theory and gravitation. Since these primordial perturbations lead to the an…
On the scalar consistency relation away from slow roll
V. Sreenath, Dhiraj Kumar Hazra, L. Sriramkumar
As is well known, the non-Gaussianity parameter , which is often used to characterize the amplitude of the scalar bi-spectrum, can be expressed completely in terms o…