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)
“I feel the carousel starting slowly
And going faster and faster: desk, papers, books,
Photographs of friends, the window and the trees
Merging in one neutral band that surrounds
Me on all sides, everywhere I look.”
—John Ashbery (b. 1927)
“Lady of light, I would admit a dream
To you, if you would take it in your hand.
Will you not let it in a gentle stream
Of living blood? How else may I remand
Your light if not as pulse upon your ear?”
—Allen Tate (1899–1979)