Coordinate Conditions and Their Implementation in 3D Numerical Relativity
摘要
We put forth a few ideas on coordinate conditions and their implementation in numerical relativity. Coordinate conditions are important for the long time scale simulations of relativistic systems, e.g., for the determination of gravitational waveforms from astrophysical events to be measured by LIGO/VIRGO. We demonstrate the importance of, and propose methods for, the {\it active enforcement} of coordinate properties. In particular, the constancy of the determinant of the spatial 3-metric is investigated as such a property. We propose an exceedingly simple but powerful idea for implementing elliptic coordinate conditions that not only makes possible the use of complicated elliptic conditions, but is also {\it orders of magnitude} more efficient than existing methods for large scale 3D simulations.
引用
@article{arxiv.gr-qc/9601027,
title = {Coordinate Conditions and Their Implementation in 3D Numerical Relativity},
author = {Jayashree Balakrishna and Gregory Daues and Edward Seidel and Wai-Mo Suen and Malcolm Tobias and Edward Wang},
journal= {arXiv preprint arXiv:gr-qc/9601027},
year = {2010}
}
备注
10 pages, 3 postscript figures