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 …
interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could …
Probing the equation of state of the early Universe with pulsar timing arrays
The recently released data by pulsar timing array (PTA) collaborations have amassed
substantial evidence corroborating the existence of a stochastic signal consistent with a …
substantial evidence corroborating the existence of a stochastic signal consistent with a …
Constraints on primordial curvature power spectrum with pulsar timing arrays
ZQ You, Z Yi, Y Wu - Journal of Cosmology and Astroparticle …, 2023 - iopscience.iop.org
The stochastic signal detected by NANOGrav, PPTA, EPTA, and CPTA can be explained by
the scalar-induced gravitational waves. In order to determine the scalar-induced …
the scalar-induced gravitational waves. In order to determine the scalar-induced …
Model-independent reconstruction of the primordial curvature power spectrum from PTA data
Z Yi, ZQ You, Y Wu - Journal of Cosmology and Astroparticle …, 2024 - iopscience.iop.org
Recently released data from pulsar timing array (PTA) collaborations provide strong
evidence for a stochastic signal consistent with a gravitational-wave background, potentially …
evidence for a stochastic signal consistent with a gravitational-wave background, potentially …
Nano-Hertz gravitational waves from collapsing domain walls associated with freeze-in dark matter in light of pulsar timing array observations
Evidence for a stochastic gravitational wave background in the nHz frequency band is
recently reported by four pulsar timing array collaborations NANOGrav, EPTA, CPTA, and …
recently reported by four pulsar timing array collaborations NANOGrav, EPTA, CPTA, and …
Simultaneously probing the sound speed and equation of state of the early Universe with pulsar timing arrays
Recently, several major pulsar timing array (PTA) collaborations have assembled strong
evidence for the existence of a gravitational-wave background at frequencies around the …
evidence for the existence of a gravitational-wave background at frequencies around the …
Phase transition during inflation and the gravitational wave signal at pulsar timing arrays
H An, B Su, H Tai, LT Wang, C Yang - Physical Review D, 2024 - APS
The gravitational wave (GW) signal offers a promising window into the dynamics of the early
Universe. The recent results from the pulsar timing arrays (PTAs) could be the first glimpse of …
Universe. The recent results from the pulsar timing arrays (PTAs) could be the first glimpse of …
Search for nontensorial gravitational-wave backgrounds in the NANOGrav 15-year dataset
ZC Chen, YM Wu, YC Bi, QG Huang - Physical Review D, 2024 - APS
The recent detection of a stochastic signal in the NANOGrav 15-year dataset has aroused
great interest in uncovering its origin. However, the evidence for the Hellings-Downs …
great interest in uncovering its origin. However, the evidence for the Hellings-Downs …
NANOGrav hints for first-order confinement-deconfinement phase transition in different QCD-matter scenarios
ZC Chen, SL Li, P Wu, H Yu - Physical Review D, 2024 - APS
Recent observations from several pulsar timing array (PTA) collaborations have unveiled
compelling evidence for a stochastic signal in the nanohertz band. This signal aligns …
compelling evidence for a stochastic signal in the nanohertz band. This signal aligns …
Cosmological gravitational waves from isocurvature fluctuations
G Domènech - AAPPS Bulletin, 2024 - Springer
Gravitational waves induced by large primordial curvature fluctuations may result in a
sizable stochastic gravitational wave background. Interestingly, curvature fluctuations are …
sizable stochastic gravitational wave background. Interestingly, curvature fluctuations are …