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-Tc 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.