Past and future gauge in numerical relativity
arXiv:gr-qc/0108056 · doi:10.1088/0264-9381/19/6/101
Abstract
Numerical relativity describes a discrete initial value problem for general relativity. A choice of gauge involves slicing space-time into space-like hypersurfaces. This introduces past and future gauge relative to the hypersurface of present time. Here, we propose solving the discretized Einstein equations with a choice of gauge in the future and a dynamical gauge in the past. The method is illustrated on a polarized Gowdy wave.
To appear in Class Quantum Grav, Lett