Europhys. Lett.
Volume 76, Number 2, October 2006
Page(s) 189 - 195
Section General
Published online 20 September 2006
Europhys. Lett., 76 (2), pp. 189-195 (2006)
DOI: 10.1209/epl/i2006-10271-9

Evanescent modes are virtual photons

A. A. Stahlhofen1 and G. Nimtz1, 2

1  Universität Koblenz, Institut für Integrierte Naturwissenschaften, Abteilung Physik Universitätsstrasse 1, D-56070 Koblenz, Germany
2  Universität Köln, II. Physikalisches Institut - Zülpicher-Str. 77 D-50937 Köln, Germany

received 22 May 2006; accepted in final form 31 August 2006
published online 20 September 2006

Former QED-based studies of evanescent modes identified these with virtual photons. Recent experimental studies confirmed the resulting predictions about non-locality, non-observability, violation of the Einstein relation and the existence of a commutator of field operators between two space-like separated points. Relativistic causality thus is violated by the near-field phenomenon evanescent modes while primitive causality is untouched.

03.65.Xp - Tunneling, traversal time, quantum Zeno dynamics.
42.50.Xa - Optical tests of quantum theory.
42.25.Bs - Wave propagation, transmission and absorption.

© EDP Sciences 2006