At the boundaries between layers, the photon creates waves interfering with each other, affecting its transit time. (Credit: JQI)
From Science Daily:
Science Daily (Jan. 27, 2010) — Researchers at the Joint Quantum Institute (JQI), a collaboration of the National Institute of Standards and Technology and the University of Maryland at College Park, can speed up photons (particles of light) to seemingly faster-than-light speeds through a stack of materials by adding a single, strategically placed layer.
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