Implications for the non-Gaussianity of curvature perturbation from pulsar timing arrays
The recently released data by pulsar timing array (PTA) collaborations present strong
evidence for a stochastic signal consistent with a gravitational-wave background. Assuming …
evidence for a stochastic signal consistent with a gravitational-wave background. Assuming …
Scalar induced gravitational waves in light of Pulsar Timing Array data
The power-law parametrization for the energy density spectrum of gravitational wave (GW)
background is a useful tool to study its physics and origin. While scalar induced secondary …
background is a useful tool to study its physics and origin. While scalar induced secondary …
Confronting sound speed resonance with pulsar timing arrays
The stochastic signal detected by pulsar timing arrays (PTAs) has raised great interest in
understanding its physical origin. Assuming the signal is a cosmological gravitational-wave …
understanding its physical origin. Assuming the signal is a cosmological gravitational-wave …
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 …
Cosmological interpretation for the stochastic signal in pulsar timing arrays
YM Wu, ZC Chen, QG Huang - Science China Physics, Mechanics & …, 2024 - Springer
The pulsar timing array (PTA) collaborations have recently reported compelling evidence for
a stochastic signal consistent with a gravitational-wave background. In this paper, we …
a stochastic signal consistent with a gravitational-wave background. In this paper, we …
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 …
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 …
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 …
Prospects for Taiji to detect a gravitational-wave background from cosmic strings
Recently, multiple pulsar timing array collaborations have presented compelling evidence
for a stochastic signal at nanohertz frequencies, potentially originating from cosmic strings …
for a stochastic signal at nanohertz frequencies, potentially originating from cosmic strings …