42 citations · 89 across the 9 of their papers we have counts for
9 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…
Quantum effects on the evaporation of PBHs: contributions to dark matter
Md Riajul Haque, Suvashis Maity, Debaprasad Maity +1
We compute the relic abundance of dark matter in the presence of Primordial Black Holes (PBHs) beyond the semiclassical approximation. We take into account the quantum corrections…
Constraining the history of reheating with the NANOGrav 15-year data
Suvashis Maity, Nilanjandev Bhaumik, Md Riajul Haque +2
Over the last few years, primordial black holes (PBHs) have emerged as a strong candidate for cold dark matter. A significant number of PBHs are produced when the strength of the p…
Loop contributions to the scalar power spectrum due to quartic order action in ultra slow roll inflation
Suvashis Maity, H. V. Ragavendra, Shiv K. Sethi +1
[Abridged] In contemporary literature, the calculation of modifications to the inflationary scalar power spectrum due to the loops from the higher order interaction terms in the Ha…
The Borde-Guth-Vilenkin Theorem in extended de Sitter spaces
William H. Kinney, Suvashis Maity, L. Sriramkumar
The Borde-Guth-Vilenkin (BGV) theorem states that any spacetime with net positive expansion must be geodesically incomplete. We derive a new version of the theorem using the fluid…