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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:28 |
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Conference: Bucharest University Faculty of Physics 2018 Meeting
Section: Theoretical Physics and Applied Mathematics
Title:
The momentum and energy of an accelerated electron and of its field
Authors:
Mihai DONDERA
Affiliation:
Department of Theoretical Physics, Mathematics, Optics, Plasma and Lasers, Faculty of Physics, University of Bucharest
E-mail
don@barutu.fizica.unibuc.ro
Keywords:
electron, classical electrodynamics, momentum, energy, reaction forces
Abstract:
We revisit the problem of the motion of an electron under the influence
of an external force. The motion being accelerated, it is accompanied
by the emission of electromagnetic radiation, effect which modifies the motion itself.
We describe recently obtained results for the total momentum and energy of the electromagnetic field of the accelerated electron, for a spatial region excluding a vicinity of the electron and extending to infinity. A procedure is presented to treat the singularities of the results in the limit of the point electron and their partial covariance.
Then we describe inferred expressions for the observables momentum and energy of the electron, leading, together with those corresponding to the emitted radiation, to an equation of motion of the electron that coincides, in the case of an external electromagnetic field, with the Lorentz-Dirac equation.
Acknowledgement:
This work has been supported by the Project 29/2016 ELI RO financed by the Institute of Atomic Physics.
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