Publications (22)
A Test of Gravity with Pulsar Timing Arrays
Qiuyue Liang, Meng-Xiang Lin, Mark Trodden
A successful measurement of the Stochastic Gravitational Wave Background (SGWB) in Pulsar Timing Arrays (PTAs) would open up a new window through which to test the predictions of G…
The Early Dark Sector, the Hubble Tension, and the Swampland
Evan McDonough, Meng-Xiang Lin, J. Colin Hill +2
We consider the interplay of the Early Dark Energy (EDE) model, the Swampland Distance Conjecture (SDC), and cosmological parameter tensions. EDE is a proposed resolution of the Hu…
Realization Variance of Gravitational Wave Background Anisotropies from Shot Noise for Pulsar Timing Arrays
Meng-Xiang Lin, Adam Lidz, Chung-Pei Ma
Shot-noise anisotropies in the nHz gravitational wave background (GWB) are a promising target for pulsar timing arrays (PTAs). If the nHz GWB is sourced by merging supermassive bla…
Testing H0 in Acoustic Dark Energy Models with Planck and ACT Polarization
Meng-Xiang Lin, Wayne Hu, Marco Raveri
The canonical acoustic dark energy model (cADE), which is based on a scalar field with a canonical kinetic term that rapidly converts potential to kinetic energy around matter radi…
Acoustic Dark Energy: Potential Conversion of the Hubble Tension
Meng-Xiang Lin, Giampaolo Benevento, Wayne Hu +1
We discuss the ability of a dark fluid becoming relevant around the time of matter radiation equality to significantly relieve the tension between local measurements of the Hubble…
Late Time Modification of Structure Growth and the S8 Tension
Meng-Xiang Lin, Bhuvnesh Jain, Marco Raveri +5
The tension between low-redshift galaxy surveys and the primary CMB signals a possible breakdown of the CDM model. Recently differing results have been obtained using low…