Propagation of a Dirac particle. A path integral approach
- 1 June 1984
- journal article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 25 (6) , 1810-1819
- https://doi.org/10.1063/1.526360
Abstract
Rigorous path integral formulas are given which represent, in two space-time dimensions, the fundamental solution of the Cauchy problem for the Dirac equation as well as the retarded and advanced propagators for the Dirac particle. It is also shown that the theory can be applied to a free particle and a particle in a central electric field in four space-time dimensions and reveals some aspects of the path integral. Heuristically discussed is the connection with the phase space path integral or Hamiltonian path integral.Keywords
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