Spinors, Spin Coefficients and Lanczos Potentials

Details Spinors, Spin Coefficients and Lanczos Potentials Spinors, Spin Coefficients and Lanczos Potentials

1998-09-15

arxiv.org/abs/gr-qc/9809045v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

10 pages, LaTeX-file

Scientific paper

It has been demonstrated, in a number of special situations, that the spin coefficients of a canonical spinor dyad can be used to define a Lanczos potential of the Weyl curvature spinor. In this paper we explore some of these potentials and show that they can be defined directly from the spinor dyad in a very simple way, but that the results do not generalize significantly, in any direct manner. A link to metric, asymmetric, curvature-free connections, which suggests a more natural relationship between the Lanczos potential and spin coefficients, is also considered.

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