Abstract
The Poincaré invariant system of two point particles with an instantaneous interaction-at-a-distance originally proposed by Fokker is studied in the Hamiltonian formalism. The interaction, which agrees to first order in the coupling constant with the electromagnetic one obtained from the Liénard-Wiechert fields, is described in an advanced-retarded state space. The first particle moves in the advanced field of the second which in turn is subject to the retarded field of the first. The acceleration terms in the Liénard-Wiechert fields are neglected.
In this theory the state space of the system is a twelve-dimensional manifold Σ and the motions are described as integral curves of a vector field that is obtained as the projection of the generator of time translations in space-time. The Poincaré group acts on this manifold Σ in a well-defined way and leaves a symplectic form ω invariant. Thus the set of all possible motions of this system can be studied by the methods of modern symplectic mechanics. In this paper the general method is explained and the set of all bounded motions for two equal rest masses and an attractive force is studied qualitatively and numerically. In the limit (binding energy)/(sum of rest masses) · (speed of light)2 → 0 all the features of the classical Kepler motion are obtained.
Similar content being viewed by others
References
Abraham, R. and Marsden, J. E. (1967).Foundations of Mechanics. Benjamin, New York.
Bruhns, B. (1973).Physical Review,D8, 2370.
Fokker, A. D. (1929).Physica,9, 33.
Künzle, H. P. (1974a).Symposia Mathematica (to appear).
Künzle, H. P. (1974b).Journal of Mathematical Physics,15, 1033.
Lorente, M. and Roman, P. (1974).Journal of Mathematical Physics,15, 70.
Marsden, J. and Weinstein, A. (1974).Reports on Matheamatical Physics (to appear).
Smale, S. (1970).Inventiones mathematicae,10, 305.
Souriau, J. M. (1970).Structure des systèmes dynamiques. Dunod, Paris.
Souriau, J. M. (1974).Symposia Mathematica (to appear).
Staruszkiewicz, A. (1971).Annales de l'Institut Henri Poincaré, Section A,14, 69.
Synge, J. L. (1965).Relativity: The Special Theory, 2nd edition. North-Holland Publishing Company, Amsterdam.
Author information
Authors and Affiliations
Additional information
Supported in part by the National Research Council of Canada.
Rights and permissions
About this article
Cite this article
Künzle, H.P. A relativistic analogue of the Kepler problem. Int J Theor Phys 11, 395–417 (1974). https://doi.org/10.1007/BF01809718
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01809718