35 citations · 213 across the 14 of their papers we have counts for
14 papers
Benchmarking Exact, GP-Emulated, and Simulation-Based Inference for Late-Time Cosmology
Sai Swagat Mishra
Forthcoming cosmological surveys require inference pipelines that are both statistically reliable and computationally scalable. In this work, we perform a systematic comparison of…
Kinematic Probes of Type-II MMG: Padé Cosmographic Analysis of VCDM
Soumya Kanta Bhoi, Sai Swagat Mishra, P. K. Sahoo
We study the late-time expansion history of the Universe within the VCDM model, a Type-II MMG realization that preserves the successes of General Relativity while extending beyond…
Exploring Late-Time Cosmic Acceleration in VCDM Cosmology
Sai Swagat Mishra, Soumya Kanta Bhoi, P. K. Sahoo
In this work, we have considered a minimally modified gravity theory that effectively reproduces VCDM-like behavior to investigate its cosmological implications. The model paramete…
BBN to Late-Time Acceleration in Gravity
Sai Swagat Mishra, Suchita Patel, P. K. Sahoo
We present, to our knowledge, the first systematic study of early-late cosmic evolution and acceleration in the framework of gravity, an extension of teleparal…
Cosmological Evolution of the Universe in Torsion-based Modified Gravity
Sai Swagat Mishra
General Relativity, despite its century-long success, faces conceptual and observational challenges, including singularities, incompatibility with quantum mechanics, and the need t…
Observational constraints on viscous free- fluid in gravity
Simran Arora, Sai Swagat Mishra, P. K. Sahoo
We investigate the late-time cosmological dynamics of a spatially flat FLRW Universe in the framework of exponential gravity, where denotes the nonmetricity scalar. The…
Chebyshev cosmography in the framework of extended symmetric teleparallel theory
Sai Swagat Mishra, N. S. Kavya, P. K. Sahoo +1
Cosmography has been extensively utilized to constrain the kinematic state of the Universe using measured distances. In this work, we propose a new method to reconstruct coupling t…
Investigating early and late-time epochs in gravity
Ameya Kolhatkar, Sai Swagat Mishra, P. K. Sahoo
In the following work, a new hybrid model of the form has been proposed and confronted using both early as well as late-time constraints. We first…
Can models play a bridge between early and late time Universe?
N. S. Kavya, Sai Swagat Mishra, P. K. Sahoo +1
The ability of Big Bang Nucleosynthesis theory to accurately predict the primordial abundances of helium and deuterium, as well as the baryon content of the Universe, is considered…
Constraining extended teleparallel gravity via cosmography: A model-independent approach
Sai Swagat Mishra, N. S. Kavya, P. K. Sahoo +1
As a classical approach, the dynamics of the Universe, influenced by its dark components, are unveiled through prior modifications of Einstein's equations. Cosmography, on the othe…
Probing Baryogenesis in gravity
Sai Swagat Mishra, Aaqid Bhat, P. K. Sahoo
The origin of matter domination in the Universe is one of the most exciting open puzzles in particle physics and cosmology. Despite many theoretical developments, the actual reason…
Big Bang Nucleosynthesis constraints on gravity
Sai Swagat Mishra, Ameya Kolhatkar, P. K. Sahoo
Big Bang Nucleosynthesis provides us with an observational insight into the very early Universe. Since this mechanism of light element synthesis comes out of the standard model of…
Constraining Gravity with Gravitational Baryogenesis
Sai Swagat Mishra, Sanjay Mandal, P. K. Sahoo
Gravitational baryogenesis is one of the mechanisms which help us to explore more about our early universe, especially baryon-anti-baryon asymmetry. As we know, modified theories o…
Tension in Torsion-based Modified Gravity
Sanjay Mandal, Oleksii Sokoliuk, Sai Swagat Mishra +1
The rising concern in the Hubble constant tension ( tension) of the cosmological models motivates the scientific community to search for alternative cosmological scenarios tha…