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Submission + - Single Photons Do Not Exceed the Speed of Light (

GhigoRenzulli writes: A group of physicists at the Hong Kong University of Science and Technology (HKUST) led by Prof Shengwang Du reported the direct observation of optical precursor of a single photon and proved that single photons cannot travel faster than the speed of light in vacuum. HKUST's study reaffirms Einstein's theory that nothing travels faster than light and closes a decade-long debate about the speed of a single photon.
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Single Photons Do Not Exceed the Speed of Light

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