From the 1 of 6.6k papers with an AI index.
- University of Science and Technology of ChinaCN1.2k papers
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- Tsinghua UniversityCN984 papers
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- Università degli Studi del Piemonte Orientale “Amedeo Avogadro”IT785 papers
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- National Centre for Nuclear ResearchPL756 papers
290 papers · 1 filter
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…
Acausal exact vacuum solutions in nonlocal gravity
Zhe Zhao, Leonardo Modesto, Cosimo Bambi
Nonlocal gravity is a promising super-renormalizable or finite quantum gravity theory consistent with unitarity. In this paper, we focus on the classical equations of motion and ex…
Spacetime discreteness via consistent microscopic measurement
Weihu Ma, Yu-Gang Ma
The physical origin of spacetime discreteness remains a central open problem in quantum gravity, with most existing approaches relying on specific microscopic structures or model-d…
Distinguish Bardeen-like black holes by Gravitational lensing
Limei Yuan, Chen-Hung Hsiao, Yidun Wan
We study Bardeen-like regular black holes without Cauchy horizons via gravitational lensing. In the weak field, the deflection angle receives a positive -dependent correction…
Bouncing cosmologies from Born-Infeld-type gravity
Yermek Aldabergenov, Wei Lin, Rongjian Li +2
We construct a Born-Infeld-type modification of gravity, where is the Gauss-Bonnet term, by embedding Born-Infeld electrodynamics in a five-dimensional p…
Improved Constraints on Non-Kerr Deviations from Binary Black Hole Inspirals Using GWTC-4 Data
Debtroy Das, Swarnim Shashank, Cosimo Bambi
Gravitational wave (GW) observations of binary black hole (BBH) mergers provide a unique opportunity to probe the nature of spacetime in the strong-field and dynamical regime. We p…