32 citations · 45 across the 5 of their papers we have counts for
5 papers
Unified Origin of Curvature Perturbation and Baryon Asymmetry of the Universe
Anish Ghoshal, Abhishek Naskar, Nobuchika Okada
We propose a unified framework that describes both the curvaton mechanism for generating primordial density fluctuations and the Affleck-Dine (AD) mechanism for baryogenesis. By in…
Primordial non-Gaussianity as a probe of seesaw and leptogenesis
Chee Sheng Fong, Anish Ghoshal, Abhishek Naskar +2
We present the possibility that the seesaw mechanism and nonthermal leptogenesis can be {investigated} via primordial non-Gaussianities in the context of a majoron curvaton model.…
Growth of curvature perturbations for PBH formation \& detectable GWs in non-minimal curvaton scenario revisited
Chao Chen, Anish Ghoshal, Zygmunt Lalak +2
We revisit the growth of curvature perturbations in non-minimal curvaton scenario with a non-trivial field metric where is an inflaton field, and incorporate the effect…
Generalising Axion-like particle as the curvaton: sourcing primordial density perturbation and non-Gaussianities
Anish Ghoshal, Abhishek Naskar
We investigate the non-perturbatively generated axion-like particle (ALP) potential, involving fermions in the dark sector that couple to the ALP, in an early cosmological inflatio…
Effective field theory of magnetogenesis identify necessary and sufficient conditions
Ashu Kushwaha, Abhishek Naskar, Debottam Nandi +1
At astrophysical and cosmological scales, there is a detectable amount of magnetic field. There are several probable origins for this observed magnetic field, including the possibi…