It appears to have the same basis as the russian rotating superconductor magnet gravity interrupter which NASA said, (then shortly after retracted,) had a 10% reduction in apparent mass above it for an elliptical section.
NASA never went to a full-up prototype, and never went up to the Russian's energy levels, either.
The similarities, and the russian scientist's paper, both seem to be which subset of physics they are based upon, and that subset it little known, lesser accepted, and while predictive of certain elements, has not been experimentally substantiated with full peer review.