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Slow light is a dramatic reduction in the group velocity of light, not the phase velocity. Slow light effects are not due to abnormally large refractive indices, as will be explained below. The simplest picture of light given by classical physics is of a wave or disturbance in the electromagnetic field.
Hau and her associates at Harvard University "have demonstrated exquisite control over light and matter in several experiments, but her experiment with 2 condensates is one of the most compelling". [11] In 2006 they successfully transferred a qubit from light to a matter wave and back into light, again using Bose–Einstein condensates.
OpenRelativity is a toolkit designed for use with the proprietary Unity game engine. It was developed by MIT Game Lab during the development of A Slower Speed of Light. The toolkit allows for the accurate simulation of a 3D environment when light is slowed down. [7] It is hosted on GitHub and has been published under the permissive MIT license. [2]
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Experiments that attempt to directly probe the one-way speed of light independent of synchronization have been proposed, but none have succeeded in doing so. [3] Those experiments directly establish that synchronization with slow clock-transport is equivalent to Einstein synchronization, which is an important feature of special relativity.
An improved experiment was done by Pound and Snider in 1965, with an accuracy better than the 1% level. [31] A very accurate gravitational redshift experiment was performed in 1976, [32] where a hydrogen maser clock on a rocket was launched to a height of 10 000 km, and its rate compared with an identical clock on the ground. It tested the ...
Sonoluminescence is the emission of light from imploding bubbles in a liquid when excited by sound. Sonoluminescence was first discovered in 1934 at the University of Cologne . It occurs when a sound wave of sufficient intensity induces a gaseous cavity within a liquid to collapse quickly, emitting a burst of light.
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