Faster Than Light
It is possible for spin zero particles to travel faster than the speed of light when tunnelling. This apparently violates the principle of causality (physics), since there will be a frame of reference in which it arrives before it has left. However, careful analysis of the transmission of the wave packet shows that there is actually no violation of relativity theory. In 1998, P.E. Low reviewed briefly the phenomenon of zero time tunneling. More recently experimental tunneling time data of phonons, photons, and electrons are published by G. Nimtz.
See also: Faster-than-lightRead more about this topic: Quantum Tunnelling
Famous quotes containing the words faster than, faster and/or light:
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—Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)
“When the precipitancy of a man’s wishes hurries on his ideas ninety times faster than the vehicle he rides in—woe be to truth!”
—Laurence Sterne (1713–1768)
“What will you say, when I tell you truly, that I cannot possibly read our countryman Milton through. I acknowledge him to have most sublime passages, some prodigious flashes of light; but then you must acknowledge that light is often followed by darkness visible, to use his own expression.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)