Reducing phase error in long numerical binary black hole evolutions with sixth order finite differencing

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We describe a modification of a fourth-order accurate ``moving puncture'' evolution code, where by replacing spatial fourth-order accurate differencing operators in the bulk of the grid by a specific choice of sixth-order accurate stencils we gain significant improvements in accuracy. We illustrate the performance of the modified algorithm with an equal-mass simulation covering nine orbits.
13 pages, 6 figures

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General Relativity and Quantum Cosmology

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http://salesiana.dossiersoluciones.com/handle/123456789/205699

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0706.0740
 http://arxiv.org/abs/0706.0740
 Class.Quant.Grav.25:105006,2008
 doi:10.1088/0264-9381/25/10/105006

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arXiv