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Optoelectronics & Communications

Researchers trap beam in an ultracold cloud of atoms for 1.5 seconds

Science News
22 December 2009

A cloud of ultracold atoms can store a beam of yellow light for 1.5 seconds -- enough time for light to circle the Earth 10 times under normal conditions, researchers led by Lene Hau of Harvard University report.

This ability to store light may lead to more efficient ways to communicate, as well as new ways to explore quantum mechanical properties such as entanglement.

Full story from Science News