[HTML][HTML] Observational evidence for primordial black holes: A positivist perspective

BJ Carr, S Clesse, J Garcia-Bellido, MRS Hawkins… - Physics Reports, 2024 - Elsevier
We review numerous arguments for primordial black holes (PBHs) based on observational
evidence from a variety of lensing, dynamical, accretion and gravitational-wave effects. This …

Astrophysics with the laser interferometer space antenna

P Amaro-Seoane, J Andrews, M Arca Sedda… - Living Reviews in …, 2023 - Springer
Abstract The Laser Interferometer Space Antenna (LISA) will be a transformative experiment
for gravitational wave astronomy, and, as such, it will offer unique opportunities to address …

[HTML][HTML] Recent advances in inflation

SD Odintsov, VK Oikonomou, I Giannakoudi… - Symmetry, 2023 - mdpi.com
We review recent trends in inflationary dynamics in the context of viable modified gravity
theories. After providing a general overview of the inflationary paradigm emphasizing on …

New horizons for fundamental physics with LISA

KG Arun, E Belgacem, R Benkel, L Bernard… - Living Reviews in …, 2022 - Springer
Abstract The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders
about the fundamental theory of nature at play in the extreme gravity regime, where the …

Scalar-induced gravitational wave interpretation of PTA data: the role of scalar fluctuation propagation speed

S Balaji, G Domènech… - Journal of Cosmology and …, 2023 - iopscience.iop.org
Pulsar timing arrays gathered evidence of the presence of a gravitational wave background
around nHz frequencies. If the gravitational wave background was induced by large and …

Cosmic superstrings revisited in light of NANOGrav 15-year data

J Ellis, M Lewicki, C Lin, V Vaskonen - Physical Review D, 2023 - APS
We analyze cosmic superstring models in light of NANOGrav 15-year pulsar timing data. A
good fit is found for a string tension G μ∼ 10-12–10-11 and a string intercommutation …

[HTML][HTML] LISA definition study report

M Colpi, K Danzmann, M Hewitson… - arxiv preprint arxiv …, 2024 - pierreauclair.org
Abstract The Laser Interferometer Space Antenna (LISA) is the first scientific endeavour to
detect and study gravitational waves from space. LISA will survey the sky for Gravitational …

Implications of pulsar timing array data for scalar-induced gravitational waves and primordial black holes: Primordial non-Gaussianity considered

S Wang, ZC Zhao, JP Li, QH Zhu - Physical Review Research, 2024 - APS
Multiple pulsar-timing-array collaborations have reported strong evidence for the existence
of a gravitational-wave background. We study physical implications of this signal for …

Inflationary Butterfly Effect: Nonperturbative Dynamics from Small-Scale Features

A Caravano, K Inomata, S Renaux-Petel - Physical Review Letters, 2024 - APS
For the first time, we investigate the nonperturbative dynamics of single field inflation with a
departure from slow roll. Using simulations, we find that oscillatory features in the potential …

Primordial black holes and their gravitational-wave signatures

E Bagui, S Clesse, V De Luca, JM Ezquiaga… - Living Reviews in …, 2025 - Springer
In the recent years, primordial black holes (PBHs) have emerged as one of the most
interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could …