3 papers
gr-qc2025
Extracting the expression for the field equations of a diffeomorphism invariant theory of gravity from surface term
Jun-Jin Peng
As a contribution towards the understanding for the field equations of diffeomorphism invariant theories of pure gravity, we demonstrate in great detail that the expression for the…
gr-qc2025
Can We Probe Spacetime Non-commutativity Through Tidal Deformability of Compact Objects?
Junting Peng, Yanbo Zhao, Antonino Marciano
We investigate the impact of spacetime non-commutativity on the tidal deformability of compact objects and explore the feasibility of detecting non-commutative (NC) effects through…
gr-qc2024
Axial Gravitational Perturbations of Slowly-Rotating Compact Objects in General Relativity and Beyond
Xing-Hui Feng, Jun Peng
We study the axial gravitational perturbations of slowly-rotating compact objects which are assumed to be supported by anisotropic fluids. We find that the gravitational perturbati…