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Are gauge shocks really shocks?

Authors
  • Alcubierre, Miguel
Type
Published Article
Publication Date
Aug 24, 2005
Submission Date
Mar 08, 2005
Identifiers
DOI: 10.1088/0264-9381/22/19/017
arXiv ID: gr-qc/0503030
Source
arXiv
License
Unknown
External links

Abstract

The existence of gauge pathologies associated with the Bona-Masso family of generalized harmonic slicing conditions is proven for the case of simple 1+1 relativity. It is shown that these gauge pathologies are true shocks in the sense that the characteristic lines associated with the propagation of the gauge cross, which implies that the name ``gauge shock'' usually given to such pathologies is indeed correct. These gauge shocks are associated with places where the spatial hypersurfaces that determine the foliation of spacetime become non-smooth.

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