7 citations · 14 across the 9 of their papers we have counts for
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Spectral Fingerprints Beyond Degeneracies in Primordial Gravitational-Wave Sources
Subhasis Maiti
Stochastic gravitational-wave backgrounds from different primordial mechanisms can exhibit identical peak frequencies and amplitudes, leaving their origin degenerate. We show that…
The Magnetic Origin of Primordial Black Holes: Ultralight PBHs and Secondary GWs
Subhasis Maiti, Debaprasad Maity
Ultralight primordial black holes (PBHs) provide a compelling window into early-Universe cosmology. Following our earlier work, we explore a mechanism for the formation of ultralig…
Gravitational Waves from Post-Inflationary Magnetism: Direct and Scalar-Induced Contributions
Subhasis Maiti
We study stochastic gravitational waves generated in a post-inflationary magnetogenesis scenario with time-dependent gauge couplings during inflation and reheating. In this setup,…
The Magnetic Origin of Primordial Black Holes: A Viable Dark Matter Scenario
Subhasis Maiti, Debaprasad Maity
Primordial Black Holes (PBHs) are compelling candidates for explaining the present-day relic abundance of cold dark matter (CDM), yet their formation typically requires finely tune…
Magnetogenesis from Sawtooth Coupling: Gravitational Wave Probe of Reheating
Subhasis Maiti
The detection of gravitational waves (GWs) by LIGO-Virgo and pulsar timing arrays (PTAs) has opened a new window into early universe cosmology. Yet, the origin of large-scale magne…
Probing Reheating Phase via Non-Helical Magnetogenesis and Secondary Gravitational Waves
Subhasis Maiti, Debaprasad Maity, Rohan Srikanth
In the past two decades, significant advancements have been made in observational techniques to enhance our understanding of the universe and its evolutionary processes. However, o…