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An action principle for the motion of particles |
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| Authors: | P. A. M. Dirac |
| Affiliation: | (1) Physics Department, Florida State University, Tallahassee, Florida |
| Abstract: | An action principle is set up for the motion of charged matter in the presence of the Einstein gravitational field. It can be applied to the motion of an extended particle and avoids the difficulties of a point particle arising from the singularities in the field. |
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