61 citations · 198 across the 20 of their papers we have counts for
11 papers · 1 filter
Dark Matter-Induced Stellar Oscillations in the de Broglie Regime
Qiuyue Liang, Jeremy Sakstein
We investigate stellar oscillations driven by the time-dependent gravitational potential of ultralight dark matter (ULDM) in the de Broglie regime. The response is controlled by th…
First astrometric constraints on parity-violation in the gravitational wave background
Santiago Jaraba, Sachiko Kuroyanagi, Qiuyue Liang +2
Astrometry, the precise measurement of stellar positions and velocities, offers a promising approach to probing the low-frequency stochastic gravitational wave background (SGWB). N…
Simulations of Shapiro, Gravitational, and Doppler time delays in pulsar networks for ultralight dark matter
Andrew Eberhardt, Qiuyue Liang, Elisa G. M. Ferreira
The study of ultralight dark matter helps to constrain the lower bound of the mass in minimally coupled dark matter models. The granular structure of ultralight dark matter density…
Testing Gravity with Realistic Gravitational Waveforms in Pulsar Timing Arrays
Wayne Hu, Qiuyue Liang, Meng-Xiang Lin +1
We consider the effects of relaxing the assumption that gravitational waves composing the stochastic gravitational wave background (SGWB) are uncorrelated between frequencies in an…
Testing Gravity with Frequency-Dependent Overlap Reduction Function in Pulsar Timing Array
Qiuyue Liang, Ippei Obata, Misao Sasaki
The positive evidence of a nano-hertz gravitational wave background recently found by several pulsar timing array (PTA) collaborations opened up a window to test modified gravity t…
Probing Parity Violation in the Stochastic Gravitational Wave Background with Astrometry
Qiuyue Liang, Meng-Xiang Lin, Mark Trodden +1
Astrometry holds the potential for testing fundamental physics through the effects of the Stochastic Gravitational Wave Background (SGWB) in the nHz frequency band on…
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…
Neutrino-Assisted Early Dark Energy is a Natural Resolution of the Hubble Tension
Mariana Carrillo González, Qiuyue Liang, Jeremy Sakstein +1
It has very recently been claimed that the neutrino-assisted early dark energy model -- a promising resolution of the Hubble tension that can ameliorate the theoretical fine-tuning…
Detecting the Stochastic Gravitational Wave Background from Massive Gravity with Pulsar Timing Arrays
Qiuyue Liang, Mark Trodden
We explore the potential of Pulsar Timing Arrays (PTAs) such as NANOGrav, EPTA, and PPTA to detect the Stochastic Gravitational Wave Background (SGWB) in theories of massive gravit…
Neutrino-Assisted Early Dark Energy: Theory and Cosmology
Mariana Carrillo González, Qiuyue Liang, Jeremy Sakstein +1
The tension between measurements of the Hubble constant obtained at different redshifts may provide a hint of new physics active in the relatively early universe, around the epoch…
Numerical study of inflationary preheating with arbitrary power-law potential and a realization of curvaton mechanism
Jie Jiang, Qiuyue Liang, Yi-Fu Cai +2
During inflationary preheating, the energy stored in the inflaton field is rapidly converted into excitations of other entropy fields. This stage is characterized by exponential pa…