Radiation from an accelerated charge

Radiation from an accelerated charge

According to Camila de Almeida and Alberto Saa at http://arxiv.org/PS_cache/physics/pdf/0506/0506049v5.pdf, it still seems to be an unresolved question as to whether the Einstein equivalence principle is satisfied in the comparison between a charge supported in a uniform gravitational field and a charge fixed in a uniformly accelerated reference frame. By the Einstein equivalence principle is here meant the one expressed in the Einstein lift argument, that is to say the general equivalence for all physical processes of inertia and gravity, not merely the equality of gravitational and inertial masses known to Galileo and Newton, and experimentally verified by such experiments as those of Eötvös at http://en.wikipedia.org/wiki/Lor%C3%A1nd_E%C3%B6tv%C3%B6s. It is also not clear whether such equivalence is only local and generally violated globally and therefore not a principle of physics, or whether it is generally global and therefore a principle of physics.

Till now I have failed to find empirical evidence directly bearing on this question for a charge supported in a gravitational field and a charge fixed in a uniformly accelerated reference frame. Can you advise me? Of course I would also be very interested in advice about the theoretical analysis of the matter.

Christopher

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