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 and/or light:
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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)
“The One remains, the many change and pass;
Heaven’s light forever shines, Earth’s shadows fly;
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Stains the white radiance of Eternity,
Until Death tramples it to fragments.”
—Percy Bysshe Shelley (1792–1822)