3 papers
hep-th2024
Taub-NUT Instanton as the Self-dual Analog of Kerr
Jash Desai, Gabriel Herczeg, David McNutt +1
It was recently conjectured that a certain vacuum Kerr-Schild spacetime, which may be regarded as a self-dual analog of the Kerr metric, is equivalent to the self-dual Taub-NUT ins…
hep-th2024
Kleinian black holes
Damien A. Easson, Max W. Pezzelle
We prove there is a unique vacuum solution in split-signature spacetimes with Kleinian SO(2,1) spherical symmetry. We extend our analysis to accommodate a positive or negative cosm…
gr-qc2023
Isometries and the double copy
Damien A. Easson, Gabriel Herczeg, Tucker Manton +1
In the standard derivation of the Kerr-Schild double copy, the geodicity of the Kerr-Schild vector and the stationarity of the spacetime are presented as assumptions that are neces…