Mutually unbiased binary observable sets on N qubits

Jay Lawrence, Caslav Brukner, Anton Zeilinger

    Publications: Contribution to journalArticlePeer Reviewed


    Two- and three-qubit cases are given to illustrate several important points. First, with regard to state preparation, N observables suffice to define any of the listed basis states completely. Second, with regard to the determination of a general, possibly mixed state, recall the 4N-1 real parameters are required to specify the N-qubit density matrix completely.
    Original languageEnglish
    Article number032320
    Number of pages5
    JournalPhysical Review A
    Issue number3
    Publication statusPublished - 2002

    Austrian Fields of Science 2012

    • 103026 Quantum optics

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