Reducing phase error in long numerical binary black hole evolutions with sixth order finite differencing
نویسندگان
چکیده
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. PACS numbers: 04.25.Dm, 04.30.Db, 95.30.Sf
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تاریخ انتشار 2008