8 citations · 14 across the 13 of their papers we have counts for
11 papers · 1 filter
Formalizing a unified dynamical system framework for and gravity
Saikat Chakraborty
Going beyond the traditional Hubble-normalized framework, we formalize a unified dynamical system formulation for and coincident gauge gravity using three distinct se…
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…
Reconstructing the slope of a nearly flat quintessence potential from cosmography
Saikat Chakraborty, Peter K. S. Dunsby, Robert J. Scherrer
We revisit thawing quintessence models with nearly flat scalar-field potentials using a cosmographic framework. Earlier work indicates that the cosmographic reconstruction of the s…
Direct cosmographic reconstruction of the quintessence potential
Saikat Chakraborty, Peter K. S. Dunsby, Robert J. Scherrer
We derive expressions for the first and second derivatives of the quintessence potential , in terms of and , as fu…
Dynamical dark energy in models with evolution close to CDM
Saikat Chakraborty, Charlotte Louw, Peter K. S. Dunsby +2
In this communication we address whether or not there is an equivalence between the kinematical and dynamical descriptions of the spatially flat CDM model. We address this by in…
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…