3 papers
gr-qc2024
Metric Reconstruction in Kerr Spacetime
Stefan Hollands, Vahid Toomani
Metric reconstruction is the general problem of parameterizing GR in terms of its two ``true degrees of freedom'', e.g., by a complex scalar ``potential'' -- in practice mostly wit…
gr-qc2024
Spin-2 Green's Functions on Kerr in Radiation Gauge
Marc Casals, Stefan Hollands, Adam Pound +1
We construct retarded and advanced Green's functions for gravitational perturbations in Kerr in an ingoing radiation gauge. Our Green's functions have a frequency domain piece that…
gr-qc2020
On the radiation gauge for spin-1 perturbations in Kerr-Newman spacetime
Stefan Hollands, Vahid Toomani
We extend previous work [arXiv:1908.09095] to the case of Maxwell's equations with a source. Our work shows how to construct a retarded vector potential for the Maxwell field on th…