72 citations · 324 across the 9 of their papers we have counts for
9 papers
Extended phase-space symplectic-like integrators for coherent post-Newtonian Euler-Lagrange equations
Guifan Pan, Xin Wu, Enwei Liang
Coherent or exact equations of motion for a post-Newtonian Lagrangian formalism are the Euler-Lagrange equations without any terms truncated. They naturally conserve energy {and} a…
Charged particle motions near non-Schwarzschild black holes with external magnetic fields in modified theories of gravity
Hongxing Zhang, Naying Zhou, Wenfang Liu +1
A small deformation controlled by four free parameters to the Schwarzschild metric could be referred to a nonspinning black hole solution in alternative theories of gravity. Becaus…
Construction of second-order six-dimensional Hamiltonian-conserving scheme
Shiyang Hu, Xin Wu, Enwei Liang
It is shown analytically that the energy-conserving implicit nonsymplectic scheme of Bacchini, Ripperda, Chen and Sironi provides a first-order accuracy to numerical solutions of a…
Second post-Newtonian Lagrangian dynamics of spinning compact binaries
Li Huang, Xin Wu
The leading-order spin-orbit coupling is included in a post-Newtonian Lagrangian formulation of spinning compact binaries, which consists of the Newtonian term, first post-Newtonia…
A note on the equivalence of Lagrangian and Hamiltonian formulations at post-Newtonian approximations
Rongchao Chen, Xin Wu
It was claimed recently that a low order post-Newtonian (PN) Lagrangian formulation, which corresponds to the Euler-Lagrange equations up to an infinite PN order, can be identical…
Chaos in two black holes with next-to-leading order spin-spin interactions
Guoqing Huang, Xiaoting Ni, Xin Wu
We take into account the dynamics of a complete third post-Newtonian conservative Hamiltonian of two spinning black holes, where the orbital part arrives at the third post-Newtonia…
Resurvey of order and chaos in spinning compact binaries
Xin Wu, Yi Xie
This paper is mainly devoted to applying the invariant, fast, Lyapunov indicator to clarify some doubt regarding the apparently conflicting results of chaos in spinning compact bin…
Revisit on "Ruling out chaos in compact binary systems"
Xin Wu, Yi Xie
Full general relativity requires that chaos indicators should be invariant in various spacetime coordinate systems for a given relativistic dynamical problem. On the basis of this…
Symplectic structure of post-Newtonian Hamiltonian for spinning compact binaries
Xin Wu, Yi Xie
The phase space of a Hamiltonian system is symplectic. However, the post-Newtonian Hamiltonian formulation of spinning compact binaries in existing publications does not have this…