2 papers
hep-th2025
An algebra for covariant observers in de Sitter space
Bin Chen, Jie Xu
In -dimensional de Sitter spacetime, consistency of perturbative expansion requires imposing all second-order gravitational constraints associated with the isometry gr…
hep-th2024
Geodesics in Carrollian Reissner-Nordström black holes
Bin Chen, Haowei Sun, Jie Xu
In this work, we study the geodesics in different types of Carrollian RN (Reissner-Nordström) black holes, considering the motions of both neutral and charged particles. We use the…