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125 papers · 1 filter
Analytical solutions of bound timelike geodesic orbits in effective-one-body frame
Chen Zhang, Wen-Biao Han
We derive the approximate analytical solutions of the bound timelike geodesic orbits in the effective-one-body (EOB) frame with extreme-mass ratio limit. The analytical solutions a…
Revealing the origin of supermassive black holes with Taiji-TianQin network
Ping Shen, Wen-Biao Han, Wen-Xin Zhong
The origin of supermassive black holes (SMBHs) is a pivotal problem in modern cosmology. This work explores the potential of the Taiji-TianQin space-borne gravitational-wave (GW) d…
GWTC-4.0: Methods for Identifying and Characterizing Gravitational-wave Transients
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1809
The Gravitational-Wave Transient Catalog (GWTC) is a collection of candidate gravitational-wave transient signals identified and characterized by the LIGO-Virgo-KAGRA Collaboration…
Constraining the Deviation of Kerr Metric via Bumpy Parameterization and Particle Swarm Optimization in Extreme Mass-Ratio Inspirals
Xiaobo Zou, Xingyu Zhong, Wen-Biao Han +1
Measurement of deviations in the Kerr metric using gravitational wave (GW) observations will provide a clear signal of new Physics. Previous studies have developed multiple paramet…
Detectability of massive binary black holes with sub-mHz gravitational wave missions
Renjie Wang, Yumeng Xu, Gang Wang +2
Beyond LISA, proposed space-based gravitational wave (GW) missions aim to explore the sub-millihertz to microhertz frequency band, with one key objective being the detection of mas…
Emergent Gravity from Topological Quantum Field Theory: Stochastic Gradient Flow Perspective away from the Quantum Gravity Problem
Andrea Addazi, Salvatore Capozziello, Jinglong Liu +3
We propose a scenario according to which the ultraviolet completion of General Relativity is realized through a stochastic gradient flow towards a topological BF theory. Specifical…