4 papers
Gravity Echoes from Supermassive Black Hole Binaries
Qinyuan Zheng, Bence Bécsy, Chiara M. F. Mingarelli
Pulsar timing arrays record gravitational waves from supermassive black hole binaries at two spacetime points: an Earth term, measured when the wave passes the Earth, and a pulsar…
Probing Picohertz Gravitational Waves with Pulsars
Qinyuan Zheng, Chiara M. F. Mingarelli, William DeRocco +3
With periods much longer than the duration of current pulsar timing surveys, gravitational waves in the picohertz (pHz) regime are not detectable in the typical analysis framework…
The NANOGrav 15 yr Data Set: Targeted Searches for Supermassive Black Hole Binaries
Nikita Agarwal, Gabriella Agazie, Akash Anumarlapudi +116
We present the first targeted searches for continuous gravitational waves (CWs) from 114 active galactic nuclei (AGN) that may host supermassive black hole binaries, using the NANO…
Unit-density SU(3) Fermi-Hubbard Model with Spin Flavor Imbalance
Zewen Zhang, Qinyuan Zheng, Eduardo Ibarra-Garcia-Padilla +2
The advent of ultracold alkaline-earth atoms in optical lattices has established a platform for investigating correlated quantum matter with SU() symmetry, offering highly tunab…