On the validity of the LAD and LL classical radiation-reaction equations

M. Dorigo, M. Tessarotto, P. Nicolini, A. Beklemishev

Research output: Contribution to journalConference articlepeer-review


The search of the correct equation of motion for a classical charged particle under the action of its electromagnetic (EM) self-field, the so-called radiation-reaction equation of motion, remains elusive to date. In this paper we intend to point out why this is so. The discussion is based on the direct construction of the EM self-potentials produced by a charged spherical particle under the action of an external EM force. In particular we intend to analyze basic features of the LAD (Lorentz-Abraham-Dirac) and the LL (Landau-Lifschitz) equations. Both are shown to lead to incorrect or incomplete results.

Original languageEnglish (US)
Pages (from-to)152-157
Number of pages6
JournalAIP Conference Proceedings
StatePublished - 2009
Event26th International Symposium on Rarefied Gas Dynamics, RGD26 - Kyoto, Japan
Duration: Jul 20 2008Jul 25 2008


  • Classical electrodynamics
  • Radiation-reaction

ASJC Scopus subject areas

  • General Physics and Astronomy


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