Memory burden effect mimics reheating signatures on SGWB from ultra-low mass PBH domination

N Bhaumik, MR Haque, RK Jain, M Lewicki - Journal of High Energy …, 2024 - Springer
A bstract Ultra-low mass primordial black holes (PBH), briefly dominating the expansion of
the universe, would leave detectable imprints in the secondary stochastic gravitational wave …

Constraining burdened PBHs with gravitational waves

B Barman, K Loho, Ó Zapata - Journal of Cosmology and …, 2024 - iopscience.iop.org
We investigate the implications of memory burden on the gravitational wave (GW) spectrum
arising from the Hawking evaporation of light primordial black holes (PBHs). By considering …

Quantum effects on the evaporation of PBHs: contributions to dark matter

MR Haque, S Maity, D Maity, Y Mambrini - arXiv preprint arXiv:2404.16815, 2024 - arxiv.org
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 …

Probing the early universe with future GW observatories

S Maity, MR Haque - arXiv preprint arXiv:2407.18246, 2024 - arxiv.org
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 …

Gravitational wave signatures of cogenesis from a burdened PBH

B Barman, MR Haque, Ó Zapata - arXiv preprint arXiv:2405.15858, 2024 - arxiv.org
We explore the possibility of explaining the observed dark matter (DM) relic abundance,
along with matter-antimatter asymmetry, entirely from the evaporation of primordial black …

[PDF][PDF] Primary and scalar-induced, secondary gravitational waves from the early universe

L Sriramkumar - icts.res.in
Primary and scalar-induced, secondary gravitational waves from the early universe Page 1
Primary and scalar-induced, secondary gravitational waves from the early universe L …