The causal action in Minkowski space and surface layer integrals. (English) Zbl 1458.83003
Summary: The Lagrangian of the causal action principle is computed in Minkowski space for Dirac wave functions interacting with classical electromagnetism and linearized gravity in the limiting case when the ultraviolet cutoff is removed. Various surface layer integrals are computed in this limiting case.
MSC:
| 83C47 | Methods of quantum field theory in general relativity and gravitational theory |
| 83A05 | Special relativity |
| 35Q75 | PDEs in connection with relativity and gravitational theory |
| 81T27 | Continuum limits in quantum field theory |
| 78A25 | Electromagnetic theory (general) |
| 70S05 | Lagrangian formalism and Hamiltonian formalism in mechanics of particles and systems |
| 49S05 | Variational principles of physics |
| 53Z05 | Applications of differential geometry to physics |
References:
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