Extraction of an entanglement by repetition of the resonant transmission of an ancilla qubit

    Research output: Contribution to journalArticle

    9 Citations (Scopus)

    Abstract

    A scheme for the extraction of entanglement in two noninteracting qubits (spins) is proposed. The idea is to make use of the resonant transmission of an ancilla qubit through the two fixed qubits, controlled by the entanglement in the scatterers. Repetition of the resonant transmission extracts the singlet state in the target qubits from their arbitrary given state. Neither the preparation nor the post-selection of the ancilla spin is required, in contrast to the previously proposed schemes.

    Original languageEnglish
    Article number095304
    JournalJournal of Physics A: Mathematical and Theoretical
    Volume43
    Issue number9
    DOIs
    Publication statusPublished - 2010

    Fingerprint

    Qubit
    Entanglement
    repetition
    preparation
    scattering
    Preparation
    Target
    Repetition
    Arbitrary

    ASJC Scopus subject areas

    • Mathematical Physics
    • Physics and Astronomy(all)
    • Statistical and Nonlinear Physics
    • Modelling and Simulation
    • Statistics and Probability

    Cite this

    @article{6953e236fd4c40bc98384e969c3aa0b7,
    title = "Extraction of an entanglement by repetition of the resonant transmission of an ancilla qubit",
    abstract = "A scheme for the extraction of entanglement in two noninteracting qubits (spins) is proposed. The idea is to make use of the resonant transmission of an ancilla qubit through the two fixed qubits, controlled by the entanglement in the scatterers. Repetition of the resonant transmission extracts the singlet state in the target qubits from their arbitrary given state. Neither the preparation nor the post-selection of the ancilla spin is required, in contrast to the previously proposed schemes.",
    author = "Kazuya Yuasa",
    year = "2010",
    doi = "10.1088/1751-8113/43/9/095304",
    language = "English",
    volume = "43",
    journal = "Journal of Physics A: Mathematical and Theoretical",
    issn = "1751-8113",
    publisher = "IOP Publishing Ltd.",
    number = "9",

    }

    TY - JOUR

    T1 - Extraction of an entanglement by repetition of the resonant transmission of an ancilla qubit

    AU - Yuasa, Kazuya

    PY - 2010

    Y1 - 2010

    N2 - A scheme for the extraction of entanglement in two noninteracting qubits (spins) is proposed. The idea is to make use of the resonant transmission of an ancilla qubit through the two fixed qubits, controlled by the entanglement in the scatterers. Repetition of the resonant transmission extracts the singlet state in the target qubits from their arbitrary given state. Neither the preparation nor the post-selection of the ancilla spin is required, in contrast to the previously proposed schemes.

    AB - A scheme for the extraction of entanglement in two noninteracting qubits (spins) is proposed. The idea is to make use of the resonant transmission of an ancilla qubit through the two fixed qubits, controlled by the entanglement in the scatterers. Repetition of the resonant transmission extracts the singlet state in the target qubits from their arbitrary given state. Neither the preparation nor the post-selection of the ancilla spin is required, in contrast to the previously proposed schemes.

    UR - http://www.scopus.com/inward/record.url?scp=77249110513&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=77249110513&partnerID=8YFLogxK

    U2 - 10.1088/1751-8113/43/9/095304

    DO - 10.1088/1751-8113/43/9/095304

    M3 - Article

    VL - 43

    JO - Journal of Physics A: Mathematical and Theoretical

    JF - Journal of Physics A: Mathematical and Theoretical

    SN - 1751-8113

    IS - 9

    M1 - 095304

    ER -