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Dec 16th, 2011
Reconfigurable photonic chip realized by University of Bristol
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.
Mixture is an undesirable effect caused by interaction with the surroundings, but mixture has now become useful in characterizing quantum circuits, when it is efficiently controlled. Entanglement is the link between two remote particles. Jeremy O’Brien, a professor and the director of the Center for Quantum Photonics at the University of Bristol, stated that the device’s ability to manipulate and measure quantum phenomena is a major step toward the realization of optical quantum computing.
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