404 citations · 6.2k across the 100 of their papers we have counts for
101 papers
Scalar induced gravity waves from ultra slow-roll Galileon inflation
Sayantan Choudhury, Ahaskar Karde, Sudhakar Panda +1
We consider the production of secondary gravity waves in Galileon inflation with an ultra-slow roll (USR) phase and show that the spectrum of scalar-induced gravitational waves (SI…
Primordial non-Gaussianity from ultra slow-roll Galileon inflation
Sayantan Choudhury, Ahaskar Karde, Sudhakar Panda +1
We present a detailed study of the generation of large primordial non-Gaussianities during the slow-roll (SR) to ultra-slow roll (USR) transitions in the framework of Galileon infl…
- inflation: Sourced by energy-momentum squared gravity
Seyed Ali Hosseini Mansoori, Fereshteh Felegary, Mahmood Roshan +2
In this paper, we examine chaotic inflation within the context of the energy-momentum squared gravity (EMSG) focusing on the energy-momentum powered gravity (EMPG) that incorporate…
Galileon inflation evades the no-go for PBH formation in the single-field framework
Sayantan Choudhury, Sudhakar Panda, M. Sami
We consider Galileon inflation in the Effective Field Theory (EFT) framework and examine the possibility for PBH formation during slow roll (SR) to ultra slow roll (USR) transition…
Phantom dark energy as a natural selection of evolutionary processes and cosmological tensions
Mayukh R. Gangopadhyay, M. Sami, Mohit K. Sharma
We study the late-time cosmological tensions using the low-redshift background and redshift-space distortion data by employing a machine learning (ML) technique. By comparing the g…
Quantum loop effects on the power spectrum and constraints on primordial black holes
Sayantan Choudhury, Sudhakar Panda, M. Sami
We present a detailed exposition on the prospects of the formation of Primordial Black Holes (PBHs) during Slow Roll (SR) to Ultra Slow Roll (USR) sharp transitions in the framewor…