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 …
New horizons for fundamental physics with LISA
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 …
[HTML][HTML] Observational evidence for primordial black holes: A positivist perspective
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 …
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 …
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 …
Scalar-induced gravitational wave interpretation of PTA data: the role of scalar fluctuation propagation speed
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 …
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 …
The nanohertz stochastic gravitational wave background from cosmic string loops and the abundant high redshift massive galaxies
Recently, pulsar timing array (PTA) experiments have provided compelling evidence for the
existence of the nanohertz stochastic gravitational wave background (SGWB). In this work …
existence of the nanohertz stochastic gravitational wave background (SGWB). In this work …
Anatomy of single-field inflationary models for primordial black holes
We construct an analytically solvable simplified model that captures the essential features
for primordial black hole (PBH) production in most models of single-field inflation. The …
for primordial black hole (PBH) production in most models of single-field inflation. The …
Gravitational wave signatures of no-scale supergravity in NANOGrav and beyond
In this Letter, we derive for the first time a characteristic three-peaked GW signal within the
framework of no-scale Supergravity, being the low-energy limit of Superstring theory. We …
framework of no-scale Supergravity, being the low-energy limit of Superstring theory. We …