Logarithmic ambiguities in the description of spatial infinity

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Logarithmic ambiguities in the choice of asymptotically Cartesian coordinates at spatial infinity are discussed. It is shown that they do not affect the definitions of energy-momentum and angular momentum at i°. Thus, from a physical viewpoint, the ambiguities are "pure gauge." A prescription is given for fixed this gauge freedom for the class of space-times in which the leading-order part of the Weyl tensor satisfies a certain reflection symmetry. This class admits, in all (relatively boosted) rest frames at infinity, a one-parameter family of asymptotically distinct 3-surfaces (generalized 3-planes) on which the trace of the extrinsic curvature falls off faster than usual.

Original languageEnglish (US)
Pages (from-to)419-431
Number of pages13
JournalFoundations of Physics
Issue number4
StatePublished - Apr 1 1985

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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