Spinors and pre-metric electromagnetism

Details Spinors and pre-metric electromagnetism Spinors and pre-metric electromagnetism

2005-12-22

arxiv.org/abs/gr-qc/0512128v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, presented at the Seventh International Conference on Clifford Algebras held in Toulouse, May, 2005

Scientific paper

The basic concepts of the formulation of Maxwellian electromagnetism in the absence of a Minkowski scalar product on spacetime are summarized, with particular emphasis on the way that the electromagnetic constitutive law on the space of bivectors over spacetime supplants the role of the Minkowski scalar product on spacetime itself. The complex geometry of the space of bivectors is summarized, with the intent of showing how an isomorphic copy of the Lorentz group appears in that context. The use of complex 3-spinors to represent electromagnetic fields is then discussed, as well as the expansion of scope that the more general complex projective geometry of the space of bivectors suggests.

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