IMEX evolution of scalar fields on curved backgrounds

  title={IMEX evolution of scalar fields on curved backgrounds},
  author={Stephen R. Lau and Harald P. Pfeiffer and Janel Brown and Caltech},
  journal={Communications in Computational Physics},
  • S. LauH. Pfeiffer Caltech
  • Published 19 August 2008
  • Computer Science, Physics
  • Communications in Computational Physics
Inspiral of binary black holes occurs over a time-scale of many orbits, far longer than the dynamical time-scale of the individual black holes. Explicit evolutions of a binary system therefore require excessively many time-steps to capture interesting dynamics. We present a strategy to overcome the Courant-Friedrichs-Lewy condition in such evolutions, one relying on modern implicit-explicit ODE solvers and multidomain spectral methods for elliptic equations. Our analysis considers the model… 

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