1 citations · 1 across the 3 of their papers we have counts for
7 papers
Constraining primordial non-Gaussianity and parity-violation through Scalar-Induced Gravitational Waves with next-generation ground-based interferometers
Ilaria Caporali, H. V. Ragavendra, Angelo Ricciardone +1
In this work, we investigate the prospects for probing primordial non-Gaussianity and associated symmetry of parity through scalar-induced gravitational waves (SIGWs), with third-g…
Exploring Gravitational Wave Signatures Due to Primordial Non-gaussianity and Large Scale Structure Using SKAO
H. V. Ragavendra, Giulia Capurri, Alina Mierna +8
This chapter explores theoretical and observational strategies to use the stochastic gravitational-wave background detectable by Square Kilometre Array Observatory (SKAO) as a prob…
Chiral gravitational waves from multi-phase magnetogenesis
H. V. Ragavendra, Gianmassimo Tasinato, L. Sriramkumar
Cosmological vector fields are central to many early-Universe phenomena, including inflationary dynamics, primordial magnetogenesis, and dark-matter scenarios. However, constructin…
Scalar-induced gravitational waves from coherent initial states
Dipayan Mukherjee, H. V. Ragavendra, Shiv K. Sethi
We investigate the impact of statistical inhomogeneity and anisotropy in primordial scalar perturbations on the scalar-induced gravitational waves (SIGW). Assuming inflationary qua…
Twisted echoes of an odd quartet: Scalar-induced gravitational waves as a probe of primordial parity-violation
H. V. Ragavendra, Nicola Bartolo
Parity-violation leaves tell-tale trails in many cosmological observables. We illustrate parity-odd primordial scalar trispectra, that despite being of modest strength, impart dete…
Cross-correlation between the curvature perturbations and magnetic fields in pure ultra slow roll inflation
Sagarika Tripathy, Debika Chowdhury, H. V. Ragavendra +1
Motivated by the aim of producing significant number of primordial black holes, over the past few years, there has been a considerable interest in examining models of inflation inv…