121 research outputs found
Comment on 'Self-dressing and radiation reaction in classical electrodynamics'
Using the canonical formalism, Compagno and Persico [J. Phys. A: Math. Gen.
35 (2002) 3629--45] have calculated the 'radiation-reaction' force on a uniform
spherical charge moving rigidly, slowly and slightly from its position at the
time when the transverse electric field is assumed to vanish. This force is
shown to result in the same time-averaged self-force as that which has been
obtained by different means for the test charge of a Bohr--Rosenfeld
field-measurement procedure and which Compagno and Persico claimed to be
incorrect.Comment: REVTeX, 4 pages; this version has some cosmetic changes to agree
fully with the published version. Reply to this Comment is in G. Compagno and
F. Persico, J. Phys. A: Math. Gen. 35, 8965 (2002); response to the Reply is
in physics/021005
Comment on "Preacceleration without radiation: The nonexistence of preradiation phenomenon," by J.A. Heras [Am. J. Phys. 74, 1025 (2006)]
It is argued that a recent claim that there is no radiation in the
preacceleration part of a non-runaway solution of the Abraham--Lorentz equation
is incorrect.Comment: 3 pages, no figure
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