3 papers
gr-qc2026
Binary Ellis-Bronnikov wormholes in 3+1 numerical relativity: mergers, fly-bys and gravitational waves
Nikita M. Shirokov, Ilya Nachevsky
We present what are, to our knowledge, the first 3D numerical-relativity evolutions of wormhole binaries: pairs of massive Ellis-Bronnikov drainholes held open by a ghost scalar fi…
gr-qc2026
The Bondi Dipole in Full Numerical Relativity: a Self-Accelerating Positive-Negative Mass Binary
Nikita M. Shirokov
Bondi showed in 1957 that bodies of opposite active gravitational mass self-accelerate: the negative chases the positive it repels, and the pair runs off together. We evolve this "…
gr-qc2026
Wormhole Dynamics: Nonlinear Collapse and Gravitational-Wave Emission
Nikita M. Shirokov
We present 3D numerical-relativity evolutions of the unstable Ellis-Bronnikov wormhole using GRTeclyn, starting from exact isotropic initial data for the coupled Einstein-phantom-s…