The delay time for a quantum tunneling particle is independent of the thickness of the opaque barrier. This is called the Hartman effect, after Thomas Hartman who discovered it in 1962. In 2007, Nimtz and Stahlhofen demonstrated quantum tunneling of "evanescent modes" across a gap might result in virtual particles traveling faster than light.
Read more about Hartman Effect: Overview
Famous quotes containing the word effect:
“The second [of Zenos arguments about motion] is the one called Achilles. This is to the effect that the slowest as it runs will never be caught by the quickest. For the pursuer must first reach the point from which the pursued departed, so that the slower must always be some distance in front.”
—Zeno Of Elea (c. 490430 B.C.)
Related Phrases
Related Words