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[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 …
evidence from a variety of lensing, dynamical, accretion and gravitational-wave effects. This …
Astrophysics with the laser interferometer space antenna
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 …
for gravitational wave astronomy, and, as such, it will offer unique opportunities to address …
[HTML][HTML] Recent advances in inflation
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 …
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 …
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 …
around nHz frequencies. If the gravitational wave background was induced by large and …
Cosmic superstrings revisited in light of NANOGrav 15-year data
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 …
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 …
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
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 …
of a gravitational-wave background. We study physical implications of this signal for …
Inflationary Butterfly Effect: Nonperturbative Dynamics from Small-Scale Features
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 …
departure from slow roll. Using simulations, we find that oscillatory features in the potential …
Primordial black holes and their gravitational-wave signatures
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 …
interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could …