1999/01/19 by A. Kull, R. A. Treumann
Physics and Astronomy · #quant-ph
published as Int.J.Theor.Phys. 38 (1999) 1423-1428 · RevTeX, 3 pages including 1 figure; accepted for publication in Int. J. Theor. Phys
arxiv created 1999/01/19 · arxiv updated 2009/12/01
We revisit the path integral description of the motion of a relativistic electron. Applying a minor but well motivated conceptional change to Feynman's chessboard model, we obtain exact solutions of the Dirac equation. The calculation is performed by means of a particular simple method different from both the combinatorial approach envisaged by Feynman and its Ising model correspondence.