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:
““If everybody minded their own business,” the Duchess said in a hoarse growl, “the world would go round a deal faster than it does.””
—Lewis Carroll [Charles Lutwidge Dodgson] (1832–1898)
“General statements omit what we really want to know. Example: “Some horses run faster than others.””
—Mason Cooley (b. 1927)
“It was a remarkable kind of light to steer for,—daylight seen through a vista in the forest,—but visible as far as an ordinary beacon at night.”
—Henry David Thoreau (1817–1862)