10 papers
Eight Local Couplings of Gravitational Waves from Unified Field Equations
Hong-Bo Jin, Yue-Liang Wu
A gravitational-wave (GW) detector records a linear mixture of local couplings under the assumption that extra polarizations enter geodesic deviation. Vacuum general relativity (GR…
O5 dark-siren forecasts for modified GW propagation: background robustness of the posterior
Zhaorui Zhang, Hong-Bo Jin
Binary black hole mergers without electromagnetic counterparts are expected to dominate O5 gravitational-wave catalogs. Recent CHIMERA~2.0 forecasts typically fix to a CMB-in…
Solving Hamiltonian Constraint Equation with Physics-Informed Neural Networks
Yu-Chen Zhou, Hao Ma, Zhoujian Cao +6
Numerical relativity (NR), solving Einstein equation numerically, plays an important role in source modelling for gravitational wave astronomy. Traditional methods for NR including…
BBN constraints on primordial black holes with a continuous memory-burden crossover
Xuan-Yu Zhang, Mei-Ting Yang, Hong-Bo Jin
Light primordial black holes (PBHs) are disfavored as dark matter if they evaporate through standard Hawking radiation alone. The memory-burden effect can extend their lifetimes by…
Finite-Window Centered Organization of Neighboring Poles
Yuye Wu, Hong-Bo Jin
Near-degenerate resonance poles arise widely in open-wave systems. For gravitational-wave ringdowns, inference is performed on finite time windows where neighboring quasinormal mod…
Pair-Dependent Drift of Kerr Neighboring-Overtone Gap Minima
Yuye Wu, Hong-Bo Jin
We study adjacent Kerr quasinormal-mode overtones under a spin scan with overtone labels held fixed, using a public Leaver-type solver on a uniform grid. The observable is the modu…