A FrenetSerret interpretation of particle dynamics in highintensity laser fields
Abstract
In this paper we discuss the dynamics of charged particles in highintensity laser fields in the context of the FrenetSerret formalism, which describes the intrinsic geometry of particle world lines. We find approximate relations for the FrenetSerret scalars and basis vectors relevant for highintensity laser particle interactions. The onset of quantum effects relates to the curvature radius of classical trajectories being on the order of the Compton wavelength. The effects of classical radiation reaction are discussed, as well as the classical precession of the spinpolarization vector according to the ThomasBargmanMichelTelegdi equation. We comment on the derivation of the photon emission rate in strongfield QED beyond the locally constant field approximation, which is used in Monte Carlo simulations of quantum radiation reaction. Such a numerical simulation is presented for a possible experiment to distinguish between classical and quantum mechanical models of radiation reaction.
 Publication:

Plasma Physics and Controlled Fusion
 Pub Date:
 July 2019
 DOI:
 10.1088/13616587/ab1e77
 arXiv:
 arXiv:1903.11463
 Bibcode:
 2019PPCF...61g4005S
 Keywords:

 highpower lasers;
 charge dynamics in strong fields;
 radiation reaction;
 strongfield QED;
 spin precession in strong fields;
 Physics  Plasma Physics;
 High Energy Physics  Phenomenology;
 Physics  Atomic Physics
 EPrint:
 22 pages, 4 figures