Well, it seems I jumped the gun again — in this case, sending out the link before I finished reading the bloody paper.
From the “confirmation” paper:
“We confirmed Nikolova and Zimmerman?s
observations that a 9 W U-shaped plasma
tube, connected as a folded monopole in
front of a ground plane, receives a stronger
signal with negative dc bias than with posi-
tive bias. This effect seems to be completely
explained by conventional electromagnetic
theory and the construction of U-shaped
fluorescent tubes, however, without any
need to assume vector potential waves.
This does not prove that vector potential
waves do not exist physically. They may
exist and be detectable by other means, but
their existence cannot be inferred from our