229 citations · 1.1k across the 31 of their papers we have counts for
18 papers · 1 filter
Alternative route towards the change of metric signature
Fan Zhang
Beginning with Hartle and Hawking's no-boundary proposal, it has long been known that the pathology of a big bang singularity can be suppressed if a transition into Riemannian (Euc…
Accumulative coupling between magnetized tenuous plasma and gravitational waves
Fan Zhang
We explicitly compute the plasma wave (PW) induced by a plane gravitational wave (GW) travelling through a region of strongly magnetized plasma, governed by force-free electrodynam…
Reply to "On the branching of quasinormal resonances of near-extremal Kerr black holes" by Shahar Hod
Aaron Zimmerman, Huan Yang, Fan Zhang +3
In a study of the quasinormal mode frequencies of nearly extremal black holes, we pointed out a bifurcation of the mode spectrum into modes with finite decay and modes with vanishi…
Coupled Oscillator Model for Nonlinear Gravitational Perturbations
Huan Yang, Fan Zhang, Stephen R. Green +1
Motivated by the gravity/fluid correspondence, we introduce a new method for characterizing nonlinear gravitational interactions. Namely we map the nonlinear perturbative form of t…
Stability of exact force-free electrodynamic solutions and scattering from spacetime curvature
Fan Zhang, Sean T. McWilliams, Harald P. Pfeiffer
Recently, a family of exact force-free electrodynamic (FFE) solutions was given by Brennan, Gralla and Jacobson, which generalizes earlier solutions by Michel, Menon and Dermer, an…
Decline of the current quadrupole moment during the merger phase of binary black hole coalescence
Fan Zhang
Utilizing the tools of tendex and vortex, we study the highly dynamic plunge and merger phases of several -symmetric binary black hole coalescences. In particular, we observe a…