Article citationsMore >>

A. Aspect, P. Grangier, and G. Roger, Experimental Realization of Einstein-Podolsky-Rosen-Bohm Gedanken experiment: A New Violation of Bell's Inequalities”, Phys. Rev. Lett., 49, 91–94 (1982)

has been cited by the following article:

Article

Apparent Superluminal Speeds in Evanescent Fields, Quantum Tunnelling and Quantum Entanglement

1B&E Scientific Ltd, Seaford BN25 4PA, United Kingdom


International Journal of Physics. 2015, Vol. 3 No. 1, 40-44
DOI: 10.12691/ijp-3-1-7
Copyright © 2015 Science and Education Publishing

Cite this paper:
Arne Bergstrom. Apparent Superluminal Speeds in Evanescent Fields, Quantum Tunnelling and Quantum Entanglement. International Journal of Physics. 2015; 3(1):40-44. doi: 10.12691/ijp-3-1-7.

Correspondence to: Arne  Bergstrom, B&E Scientific Ltd, Seaford BN25 4PA, United Kingdom. Email: arne.bergstrom@physics.org

Abstract

Three cases of wave propagation involving possible superluminal speeds are discussed. The picture that emerges is that the actual propagation velocity of the wave front never exceeds the speed of light in vacuum. However, once the wave front has reached some distant point in space, then propagation may actually seem to take place along this wave with superluminal speed, yet involving no conflict with special relativity. Quantum entanglement – Einstein’s “spooky action at a distance” – is one famous, and now experimentally verified example of propagation at such apparent superluminal speed, but which is here explained within the framework of special relativity. This then at the same time also leads to a deeper understanding of the limitation of the recently proposed clock-hypothesis in special relativity, and also provides an illustration of the mechanism involved in wave-particle duality.

Keywords