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  • Quantum Walks of Correlated Photons

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    Author(s)
    Peruzzo, Alberto
    Lobino, Mirko
    C. F. Matthews, Jonathan
    Matsuda, Nobuyuki
    Politi, Alberto
    Poulios, Konstantinos
    Zhou, Xiao-Qi
    Lahini, Yoav
    Ismail, Nur
    Worhoff, Kerstin
    Bromberg, Yaron
    Silberberg, Yaron
    G. Thompson, Mark
    L. O⿿Brien, Jeremy
    Griffith University Author(s)
    Lobino, Mirko
    Year published
    2010
    Metadata
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    Abstract
    Quantum walks of correlated particles offer the possibility of studying large-scale quantum interference; simulating biological, chemical, and physical systems; and providing a route to universal quantum computation. We have demonstrated quantum walks of two identical photons in an array of 21 continuously evanescently coupled waveguides in a SiOxNy chip. We observed quantum correlations, violating a classical limit by 76 standard deviations, and found that the correlations depended critically on the input state of the quantum walk. These results present a powerful approach to achieving quantum walks with correlated particles ...
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    Quantum walks of correlated particles offer the possibility of studying large-scale quantum interference; simulating biological, chemical, and physical systems; and providing a route to universal quantum computation. We have demonstrated quantum walks of two identical photons in an array of 21 continuously evanescently coupled waveguides in a SiOxNy chip. We observed quantum correlations, violating a classical limit by 76 standard deviations, and found that the correlations depended critically on the input state of the quantum walk. These results present a powerful approach to achieving quantum walks with correlated particles to encode information in an exponentially larger state space.
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    Journal Title
    Science
    Volume
    329
    Issue
    5998
    DOI
    https://doi.org/10.1126/science.1193515
    Copyright Statement
    © The Author(s) 2010. This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science on Vol. 329, 17 September 2010, DOI: dx.doi.org/10.1126/science.1193515.
    Subject
    Quantum information, computation and communication
    Quantum optics and quantum optomechanics
    Publication URI
    http://hdl.handle.net/10072/53193
    Collection
    • Journal articles

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