Radiation-reaction in classical off-shell electrodynamics. I. The above mass-shell case

I. Aharonovich, L. P. Horwitz

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Offshell electrodynamics based on a manifestly covariant off-shell relativistic dynamics of Stueckelberg, Horwitz, and Piron, is five-dimensional. In this paper, we study the problem of radiation reaction of a particle in motion in this framework. In particular, the case of above-mass-shell is studied in detail, where the renormalization of the Lorentz force leads to a system of non-linear differential equations for 3 Lorentz scalars. The system is then solved numerically, where it is shown that the mass-shell deviation scalar ε either smoothly falls down to 0 (this result provides a mechanism for the mass stability of the off-shell theory), or strongly diverges under more extreme conditions. In both cases, no runaway motion is observed. Stability analysis indicates that the system seems to have chaotic behavior. It is also shown that, although a motion under which the mass-shell deviation ε is constant but not-zero, is indeed possible, but, it is unstable, and eventually it either decays to 0 or diverges.

Original languageEnglish
Article number032902
JournalJournal of Mathematical Physics
Issue number3
StatePublished - 19 Mar 2012


Dive into the research topics of 'Radiation-reaction in classical off-shell electrodynamics. I. The above mass-shell case'. Together they form a unique fingerprint.

Cite this