38 citations · 111 across the 15 of their papers we have counts for
5 papers · 1 filter
Partially Thermalized eV-Scale Sterile Neutrinos in Dynamical Dark Energy and Non-Flat Cosmologies
Gopal Kashyap, Kanhaiya Lal Pandey
We investigate cosmological constraints on a neutrino framework containing an additional partially thermalized, eV-scale sterile neutrino alongside the three active species…
Operator-Level Quantum-Classical Correspondence in Relativistic Quantum Theory and Curved Spacetime
Pankaj Sheoran, Gopal Kashyap, Sanjay Siwach
In a recent work \cite{Shaikh:2026nsi}, it was shown that for a non-relativistic particle, the operator equations of motion can be cast in the same differential form as Newton's eq…
Directional Tests of the Cosmic Distance Duality Relation using Pantheon+ and BAO
Pushty Shrimankar, Gopal Kashyap
We present a model-independent test of anisotropy in the cosmic distance duality relation (CDDR), , using the Pantheon+ type Ia supernova sample and baryon acousti…
Unimodular Diffusion and Interacting Vacuum Cosmology
Gopal Kashyap, Naveen K. Singh
We investigate the correspondence between unimodular diffusion cosmology and interacting dark sector models at the background and linear perturbation levels. In the diffusion frame…
Constraints on Axion-Photon Mixing from Fast Radio Burst Dispersion Measures
Gunalan Muthusami, Gopal Kashyap
Fast radio bursts (FRBs) offer a powerful probe of the ionized Universe through their dispersion measures (DM). While a significant fraction of the DM arises from the intergalactic…