311 citations · 938 across the 22 of their papers we have counts for
22 papers
Exact Integrable CDM-Mimicking Cosmology: Background, Stability, and Perturbations in the First Connection Branch
Wompherdeiki Khyllep, Daniele Gregoris, Saikat Chakraborty +1
We re-examine the problem of mimicking the standard cosmological model, characterized by (where is the cosmographic jerk parameter), within the context of the first conne…
A Unified Dynamical Systems Framework for Cosmology in Gravity: Generic Features Beyond the Coincident Gauge
Jibitesh Dutta, Wompherdeiki Khyllep, Saikat Chakraborty +2
We present a unified dynamical systems framework for spatially flat FLRW cosmology in gravity, covering all three connection branches via a single set of Hubble-normalised v…
Reproducing CDM-like Solutions in Gravity: A Comprehensive Study Across All Connection Branches
Saikat Chakraborty, Jibitesh Dutta, Daniele Gregoris +2
Given the remarkable success of the CDM model in fitting various cosmological observations, a pertinent question in assessing the phenomenological viability of modified gravity…
Modelling the Accelerating Universe with Gravity: Observational Consistency
S. A. Narawade, S. H. Shekh, B. Mishra +2
In this paper, we present a cosmological model within the framework of symmetric teleparallel gravity, focusing on gravity, where represents the non-metricity scalar. Ut…
Global phase space analysis for a class of single scalar field bouncing solutions in general relativity
A. S. Agrawal, Saikat Chakraborty, B. Mishra +2
We carry out a compact phase space analysis of a non-canonical scalar field theory whose Lagrangian is of the form within general relativity. In particular, we focus on…
Cosmology in gravity: A unified dynamical system analysis at background and perturbation levels
Wompherdeiki Khyllep, Jibitesh Dutta, Emmanuel N. Saridakis +1
Motivated by the fact that cosmological models based on gravity are very efficient in fitting observational datasets at both background and perturbation levels, we perform a…