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Reconfigurable Photonic Chip Realized

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BRISTOL, England, Dec. 14, 2011 — A versatile optical chip that produces, measures and controls two important quantum phenomena — mixture and entanglement — has been developed, representing an important step toward developing quantum computers. Artist's impression of the quantum photonic chip, showing the waveguide circuit (in white) and the voltage-controlled phase shifters (metal contacts on the surface). Photon pairs become entangled as they pass through the circuit. (Images: University of Bristol's Centre for Quantum Photonics) Mixture is an undesirable effect caused by interaction with the...Read full article

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