What if there are superluminal signals?
Institut für Theoretische Physik, Universität zu Köln,
Zülpicher Strasse 77, 50937 Köln, Germany
Published online: 15 January 2000
Recent experiments with microwaves indicate the existence of signals travelling faster than the vacuum velocity of light. At first glance these signals lead to paradoxical situations which seem to be in conflict with special relativity. We show that the arguments which lead to this contradiction presuppose that superluminal signals are not generally available and that the space-time geometry must be established by means of light rays. Hence we argue that superluminal signals will not necessarily invalidate special relativity.
PACS: 03.50.De – Classical electromagnetism, Maxwell equations / 03.30.+p – Special relativity
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000