The Gravitational Radiaton degrees of freedom in Hyperbolic Systems for Numerical Relativity

Details The Gravitational Radiaton degrees of freedom in Hyperbolic Systems for Numerical Relativity The Gravitational Radiaton degrees of freedom in Hyperbolic Systems for Numerical Relativity

2002-08-06

arxiv.org/abs/gr-qc/0208014v1

Phys.Rev.D66:064020,2002

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, no figures, accepted in PRD

Scientific paper

10.1103/PhysRevD.66.064020

The gravitational radiation degrees of freedom of freedom are described in the framework of the 3+1 decomposition of spacetime. The relationship with eigenfields of the Kidder-Scheel-Teukolsky (KST) equations is established. This relationship is used to fix a parameter in the KST equations which is related to the ordering ambiguity of space derivatives in the Ricci tensor, which is inherent to first order evolution systems, like the ones currently used in Numerical Relativity applications.

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