Excising das All: Evolving Maxwell waves beyond scri
arXiv:gr-qc/0603034 · doi:10.1103/PhysRevD.74.064003
Abstract
We study the numerical propagation of waves through future null infinity in a conformally compactified spacetime. We introduce an artificial cosmological constant, which allows us some control over the causal structure near null infinity. We exploit this freedom to ensure that all light cones are tilted outward in a region near null infinity, which allows us to impose excision-style boundary conditions in our finite difference code. In this preliminary study we consider electromagnetic waves propagating in a static, conformally compactified spacetime.
13 pages; incorporated material from gr-qc/0512167
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Cited by in corpus (11)
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- Hyperboloidal evolution with the Einstein equations
- Spacelike matching to null infinity
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- Hyperboloidal Approach to Quasinormal Modes
- Hyperboloidal evolution of test fields in three spatial dimensions
- Hyperbolic times in Minkowski space
- Excision and avoiding the use of boundary conditions in numerical relativity
- New directions for gravitational wave physics via "Millikan oil drops"