TY  - JOUR
A1  - Huber, Albert
T1  - Hidden Killing fields, geometric symmetries and black hole mergers
JF  - Annals of Physics
N2  - In the present work, using the recently introduced framework of local geometric deformations, special types of vector fields – so-called hidden Killing vector fields – are constructed, which solve the Killing equation not globally, but only locally, i.e. in local subregions of spacetime. Taking advantage of the fact that the vector fields coincide locally with Killing fields and therefore allow the consideration of integral laws that convert into exact physical conservation laws on local scales, balance laws in dynamical systems without global Killing symmetries are derived that mimic as closely as possible the conservation laws for energy and angular momentum of highly symmetric models. The utility of said balance laws is demonstrated by a concrete geometric example, namely a toy model for the binary merger of two extremal Reissner–Nordström black holes.
KW  - Hidden Killing
KW  - Vectors Phantom symmetries
KW  - Conservation laws
Y1  - 
VL  - 434
ER  -