Once again about the equivalence principle
V.L. Ginzburg a
Yu.N. Eroshenko b
a Lebedev Physical Institute, Russian Academy of Sciences, Leninsky prosp. 53, Moscow, 119991, Russian Federation
b Institute for Nuclear Research, Russian Academy of Sciences, prosp. 60-letiya Oktyabrya 7a, Moscow, 117312, Russian Federation
The formulation of the equivalence principle underlying the general theory of relativity is considered. Implications of the equivalence principle are discussed with regard to a charge placed in a locally uniform gravitational field or a uniformly accelerated reference frame (the problem was addressed earlier elsewhere, for example by Ginzburg and co-workers in 1962). The criticism by Logunov and co-workers of the canonical equivalence principle in electrodynamics as presented in the earlier review by Ginzburg and co-workers is shown to be irrelevant.