Constraint propagation of C2-adjusted formulation: Another recipe for robust ADM evolution system

Takuya Tsuchiya, Gen Yoneda, Hisa Aki Shinkai

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

With a purpose of constructing a robust evolution system against numerical instability for integrating the Einstein equations, we propose a new formulation by adjusting the ADM evolution equations with constraints. We apply an adjusting method proposed by Fiske (2004) which uses the norm of the constraints, C2. One of the advantages of this method is that the effective signature of adjusted terms (Lagrange multipliers) for constraint-damping evolution is predetermined. We demonstrate this fact by showing the eigenvalues of constraint propagation equations. We also perform numerical tests of this adjusted evolution system using polarized Gowdy-wave propagation, which show robust evolutions against the violation of the constraints than that of the standard ADM formulation.

Original languageEnglish
Article number064032
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume83
Issue number6
DOIs
Publication statusPublished - 2011 Mar 23

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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