5 papers
High-Energy Neutrino Constraints on memory burdened Bardeen and Kerr Primordial Black Holes
Md Riajul Haque, Suvashis Maity
The quantum memory burden effect can suppress the late-time Hawking evaporation of primordial black holes (PBHs), allowing PBHs below the standard evaporation threshold of approxim…
Massive Exchange and the Sign of the Equilateral Bispectrum
Diptimoy Ghosh, Suvashis Maity, Farman Ullah
We study the inflationary bispectrum generated by the tree-level exchange of a massive hidden-sector scalar during inflation. When the interaction between the inflaton and the hidd…
Relativistic accretion and burdened primordial black holes
Suvashis Maity
We examine the joint effects of relativistic accretion and memory-burdened evaporation on the evolution of primordial black holes (PBHs). The memory burden effect, which delays the…
ACT-ing on inflation: Implications of non Bunch-Davies initial condition and reheating on single-field slow roll models
Suvashis Maity
We investigate a class of slow roll inflationary models in the light of the recent Cosmic Microwave Background constraints from Planck 2018, ACT DR6, DESI DR1, and BICEP/\textit{Ke…
Probing the early universe with future GW observatories
Suvashis Maity, Md Riajul Haque
One of the fundamental characteristics of slow roll inflation is its generation of tensor perturbations, which manifest as stochastic gravitational waves (GWs). Slow roll inflation…