Theoretical analysis of a reported weak gravitational shielding effect

Abstract

Under special conditions (Meissner-effect levitation in a high frequency magnetic field and rapid rotation) a disk of high-$T_c$ superconducting material has recently been found to produce a weak shielding of the gravitational field. We show that this phenomenon has no explanation in the standard gravity theories, except possibly in the non-perturbative Euclidean quantum theory.

Comments: LaTex, 9 pages, no figures. Updated and improved version, to appear on Europhys. Lett