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But when passed through the specially prepared chamber, light emerged 62 nanoseconds earlier than it would have had it passed through the chamber in a vacuum. The 3-microsecond long pulse of light would normally take only 0.2 nanoseconds to pass through the chamber in a vacuum. In the experiment, NEC scientists measured the time taken by a pulse of light to pass through a 6cm-long specially prepared chamber containing cesium gas. The research work, which may result in significantly faster information transfer speeds across networks and in computers, was published in Nature by NEC research scientists Dr. Scientists at NEC Corporation's (NEC) basic research unit in the US claim to have proven that light can travel faster than its acknowledged speed in vacuum in a successful experiment in superluminal light propagation.ĭespite exceeding the vacuum speed of light, the experiment is not at odds with Einstein's theory of relativity and is explainable by existing physical theory. Laser pulse travels 300 times faster than light