Abstract
We establish a correspondence between the recently proposedP(4) affine and the standard superhamiltonian descriptions of the electrodynamics of classical charged particles. TheP(4) theory uses a generalized affine connection on the affine frame bundleA(M) over spacetime, and an affine connection is induced on phase space thought of as the vector bundleT * M. On the phase space manifoldT * M this affine structure defines a covariant canonical symplectic form, which, when coupled with the canonical free-particle superhamiltonian, reproduces the Lorentz force law for classical charged particles. Conversely, one may “split” the noncanonical symplectic form onT * M to define an affine connection onA(M) and thus return to theP(4) theory from symplectic geometry. The correspondence also allows a geometrization of superhamiltonian dynamics. Roughly speaking, the symplectic form onT * M is geometrized as anR 4-affine connection onA(M), and the superhamiltonian is geometrized as an affine difference function on the local momentum-energy tangent affine spaces.
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Kheyfets, A., Norris, L.K. P(4) affine and superhamiltonian formulations of charged particle dynamics. Int J Theor Phys 27, 159–182 (1988). https://doi.org/10.1007/BF00670746
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DOI: https://doi.org/10.1007/BF00670746