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A No-Boundary Method for Numerical Relativity

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arxiv 1905.08657 v1 pith:XPW2VYAQ submitted 2019-05-21 gr-qc

Lydia Bieri , David Garfinkle , Shing-Tung Yau This is my paper · ORCID
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keywords methodnumericalrelativityboundarycaseconceptconditionfield
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We propose a method for numerical relativity in which the spatial grid is finite and no outer boundary condition is needed. As a "proof of concept" we implement this method for the case of a self-gravitating, spherically symmetric scalar field.

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  1. Excision and avoiding the use of boundary conditions in numerical relativity

    gr-qc 2019-08 accept novelty 5.0 of 10

    A numerical method that excises the outer computational boundary along the ingoing light cone makes boundary conditions unnecessary, at the cost of limiting evolution to about one light-crossing time of the initial grid.

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