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:
“General statements omit what we really want to know. Example: “Some horses run faster than others.””
—Mason Cooley (b. 1927)
“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)
“It was such a leafy wilderness; a place for fauns and satyrs, and where bats hung all day to the rocks, and at evening flitted over the water, and fireflies husbanded their light under the grass and leaves against the night.”
—Henry David Thoreau (1817–1862)