Scientists freeze beam of light
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“Physicists say they have brought light to a complete halt for a fraction of a second and then sent it on its way.
Harvard University staff held a light pulse still without taking away all of its energy, the journal Nature reports.
Controlling the movement of light particles - so-called photons - to store and process data could lead to the development of quantum computers.
In a 2001 experiment, light pulses were briefly stored when particles of light were taken up by atoms in a gas.
The Harvard experiment tops that achievement by holding light and its energy at a standstill.”
