Heralded generation of multiphoton entanglement

    Publications: Contribution to journalArticlePeer Reviewed

    Abstract

    We present a scheme, based only on linear optics and standard photon detection, that allows to generate heralded multiphoton entangled states of arbitrary photon number from spontaneous parametric downconversion (PDC) in the weak interaction regime. The scheme also works in the strong interaction regime, i.e., for the production of large photon numbers, when photon-number resolving detectors with nearly perfect quantum efficiency are used. In addition, the same setup can be used for quantum metrology as multiphoton interferometer with sensitivity at the Heisenberg limit.
    Original languageEnglish
    Article number012313
    Number of pages5
    JournalPhysical Review A
    Volume75
    Issue number1
    DOIs
    Publication statusPublished - Jan 2007

    Austrian Fields of Science 2012

    • 103026 Quantum optics

    Keywords

    • QUANTUM COMPUTATION
    • STATE
    • TELEPORTATION
    • OPERATIONS

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