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 …
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 …
Constraints on the primordial curvature power spectrum by pulsar timing array data: a polynomial parameterization approach
Q Fei - Communications in Theoretical Physics, 2024 - iopscience.iop.org
The recent stochastic signal observed jointly by NANOGrav, parkes pulsar timing array,
European pulsar timing array, and Chinese pulsar timing array can be accounted for by …
European pulsar timing array, and Chinese pulsar timing array can be accounted for by …
Detecting a Gravitational-Wave Background from Null Energy Condition Violation: Prospects for Taiji
The null energy condition (NEC) is a fundamental principle in general relativity, and its
violation could leave discernible signatures in gravitational waves (GWs). A violation of the …
violation could leave discernible signatures in gravitational waves (GWs). A violation of the …
[HTML][HTML] Search for the non-linearities of gravitational wave background in NANOGrav 15-year data set
JQ Jiang, YS Piao - Physics Letters B, 2025 - Elsevier
The recently reported signal of common red noise between pulsars by several pulsar timing
array collaborations has been thought as evidence of the stochastic gravitational wave …
array collaborations has been thought as evidence of the stochastic gravitational wave …
Ability of LISA, Taiji, and their networks to detect the stochastic gravitational wave background generated by cosmic strings
BR Wang, J Li - Physical Review D, 2024 - APS
The cosmic string contributes to our understanding and revelation of the fundamental
structure and evolutionary patterns of the Universe, unifying our knowledge of the cosmos …
structure and evolutionary patterns of the Universe, unifying our knowledge of the cosmos …
Detecting a gravitational wave background from inflation with null energy condition violation: prospects for Taiji
The null energy condition (NEC) is a fundamental principle in general relativity, and its
violation could leave discernible signatures in gravitational waves (GWs). A violation of the …
violation could leave discernible signatures in gravitational waves (GWs). A violation of the …