41 citations · 217 across the 26 of their papers we have counts for
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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…
Observational predictions of inflationary model in spatially covariant gravity with two tensorial degrees of freedom for gravity
Saikat Chakraborty, Khamphee Karwan, Jakkrit Sangtawee
We study the inflationary model constructed from a Spatially Covariant Gravity (SCG). The Lagrangian for the SCG in our consideration is expressed as the polynomial of irreducible…
Observational Constraints and Preheating in Cuscuton Inflation
Phongpichit Channuie, Khamphee Karwan, Jakkrit Sangtawee
We study cuscuton inflation for the models where the potential of the cuscuton takes quadratic and exponential forms. We find that for the quadratic potential, a scalar spectral in…
Coupled dark energy model inspired from general conformal transformation
Wittaya Thipaksorn, Stharporn Sapa, Khamphee Karwan
We study the coupled dark energy model constructed from the general conformal transformation in which the coefficient of the conformal transformation depends on both the scalar fie…
Generalized Conformal Transformation and Inflationary Attractors
Khamphee Karwan, Phongpichit Channuie
We investigate the inflationary attractors in models of inflation inspired from general conformal transformation of general scalar-tensor theories to the Einstein frame. The coeffi…