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:
“Faster than fairies, faster than witches,
Bridges and houses, hedges and ditches;
And charging along like troops in a battle,
All through the meadows the horses and cattle;”
—Robert Louis Stevenson (1850–1894)
“General statements omit what we really want to know. Example: “Some horses run faster than others.””
—Mason Cooley (b. 1927)
“A lover may bestride the gossamers
That idles in the wanton summer air,
And yet not fall; so light is vanity.”
—William Shakespeare (1564–1616)