17 citations · 57 across the 29 of their papers we have counts for
14 papers · 1 filter
Study of the dark energy models in f(Q, Lm) gravity in different formalisms
Vidhi Tayal, Shaily, Vimal Kumar +2
We study the late time cosmological evolution of the Universe in the framework of a flat Friedmann Lemaitre Robertson-Walker spacetime in f(Q,Lm) gravity. The cosmic dynamics of th…
Hu-Sawicki Gravity in a Non-Flat Universe: Constraints from DESI-DR2, BBN, and Type Ia Supernovae
Saurabh Verma, Manish Yadav, Archana Dixit +2
Late-time cosmic acceleration is conventionally ascribed to a cosmological constant, though CDM continues to face several theoretical difficulties that keep alternative gravity…
Horizon Response to Orbital Redistribution in Self Consistent Einstein--Vlasov Black Hole Environments
Anirudh Pradhan, K. Ghaderi, M. Zeyauddin +1
We study whether orbital redistribution in a self consistent spherical Einstein--Vlasov environment can change the asymptotic normalization of a black hole horizon while the horizo…
Testing a Sign-Switch Cosmological Model with Curvature through Latest Planck 2018, DESI DR2 and PantheonPlus\&SH0ES Observational Data
Archana Dixit, Manish Yadav, Anirudh Pradhan +1
We investigate the spatial geometry of the Universe within the framework of a sign-switch dark energy scenario by extending the recently proposed CDM model to include a…
Kinematic Bounds on Charged Energy Extraction in the Purely Electric Branch of Euler--Heisenberg Type f(R,T) Black Holes
Anirudh Pradhan, K. Ghaderi, M. Zeyauddin
We derive and test kinematic upper bounds on charged energy extraction in the purely electric branch of a static black hole family sourced by an Euler--Heisenberg type non…
Charged Penrose Extraction in RN--AdS Black Holes with Dark Energy: Ergosphere Geometry and Rigorous Efficiency Bounds
Anirudh Pradhan, K. Ghaderi, M. Zeyauddin
We develop a quantitative framework for charge assisted Penrose extraction in Reissner--Nordström Anti-de Sitter black holes surrounded by a Kiselev type anisotropic dark energy se…
Coupled Gravitoelectromagnetic Response of a Magnetically Supported Generalized Hayward Black Hole in Nonlinear Electrodynamics
Anirudh Pradhan, K. Ghaderi, M. Zeyauddin +1
We construct the exterior coupled gravitational and electromagnetic response of a magnetically supported generalized Hayward black hole within a specified nonlinear electrodynamic…
Finite mass two throat wormholes: global light rings, branch resolved strong lensing, and scalar transmission
Anirudh Pradhan, K. Ghaderi, M. Zeyauddin +1
We introduce a static, horizonless, asymptotically flat two throat wormhole family in which one global metric determines the geometry, effective source, null dynamics, lensing, and…
Testing Exponential Gravity with CMB, DESI-DR2, and Supernova Data
Saurabh Verma, Archana Dixit, Anirudh Pradhan +1
One of the most popular competitors to the CDM paradigm as an explanation for the late-time acceleration of the universe is the modification of general relativity (GR), with models…
Particle Creation and Variable Generalized Chaplygin Gas in Gravity
N. Myrzakulov, S. H. Shekh, Anirudh Pradhan +1
In this work, we investigate the cosmological dynamics of a spatially flat Friedmann--Lemaître--Robertson--Walker Universe in the framework of generalized \( \mathcal{F}(\mathcal{R…
Anisotropic Cosmology with interacting Dark Energy in f(R,T) Gravity: A Data-Constrained & independent Approach
S. H. Shekh, N. Myrzakulov, Anirudh Pradhan +1
In this work, we investigate the cosmological dynamics of an anisotropic Universe within the framework of gravity by incorporating pressureless dark matter and the dark en…
Comparative Study of Gravity Models with Observational Constraints from \textit{OHD} and \textit{Pantheon+ datasets}
Anirudh Pradhan, S. A. Salve, V. B. Raut +1
The late-time acceleration of the universe remains one of the most significant open problems in modern cosmology. Modified gravity frameworks such as gravity provide a geome…
Alleviating the Hubble Tension with Logarithmic Dark Energy: Constraints on the CDM Model
Saurabh Verma, Archana Dixit, Anirudh Pradhan +1
Observational constraints are considered on a CDM model of the dark energy equation of state, , using…
Observational Constraints and Geometric Diagnostics of Barboza-Alcaniz and Logarithmic Dark Energy Parametrizations
Archana Dixit, Saurabh Verma, Anirudh Pradhan +1
This study investigates and compares two prominent two-dimensional dark energy (DE) parameterizations: Barboza-Alcaniz (BA) and Logarithmic forms by comparing them with a comprehen…