Abstract
The structure of spinning particle suggested by the rotating Kerr-Newman (black hole) solution, super-Kerr-Newman solution and the Kerr-Sen solution to low energy string theory is considered. Main peculiarities of the Kerr spinning particle are discussed: a vortex of twisting principal null congruence, singular ring and the Kerr source representing a rotating relativistic disk of the Compton size. A few stringy structures can be found in the real and complex Kerr geometry. Low-energy string theory predicts the existence of a heterotic string placed on the sharp boundary of this disk. The obtained recently supergeneralization of the Kerr-Newman solution suggests the existence of extra axial singular line and fermionic traveling waves concentrating near these singularities.
We discuss briefly a possibility of experimental test of these predictions.
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Burinskii, A.Y. Structure of spinning particle suggested by gravity, supergravity and low-energy string theory. Czech J Phys 50 (Suppl 1), 201–206 (2000). https://doi.org/10.1007/s10582-000-0026-9
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DOI: https://doi.org/10.1007/s10582-000-0026-9