4 papers
Testing the strong equivalence principle with multimessenger binary neutron star mergers
Jie Zhu, Hanlin Song, Zhenwei Lyu +5
The constancy of the gravitational constant is a cornerstone of the strong equivalence principle and of general relativity, yet its possible temporal variation remains a key ta…
Scalarized neutron stars with a highly relativistic core in scalar-tensor gravity
Peixiang Ji, Lijing Shao
Compact stars in scalar-tensor (ST) gravity have been extensively investigated, but relatively few studies have focused on highly relativistic neutron stars (NSs) with an extremely…
Gravitational-wave constraints on noncommutative spacetime from GW190814
Hanlin Song, Hao Li, Zhenwei Lyu +3
Recent advances in noncommutative geometry and string theory have stimulated increasing research on noncommutative gravity. The detection of gravitational waves~(GW) opens a new wi…
Neutron stars in the bumblebee theory of gravity
Peixiang Ji, Zhuhai Li, Lirui Yang +3
Recently, theoretical studies on the bumblebee gravity model, a nonminimally-coupled vector-tensor theory that violates the Lorentz symmetry, have flourished, with a simultaneous i…