Diffusion and transfer of entanglement in an array of inductively coupled flux qubits

Rosanna Migliore, Kazuya Yuasa, Marina Guccione, Hiromichi Nakazato, Antonino Messina

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    Abstract

    A theoretical scheme to generate multipartite entangled states in a Josephson planar-designed architecture is reported. This scheme improves the one published by Migliore [Phys. Rev. B 74, 104503 (2006)] since it speeds up the generation of W entangled states in an M×N array of inductively coupled Josephson flux qubits by reducing the number of necessary steps. In addition, the same protocol is shown to be able to transfer the W state from one row to the other.

    Original languageEnglish
    Article number052501
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume76
    Issue number5
    DOIs
    Publication statusPublished - 2007 Aug 3

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    ASJC Scopus subject areas

    • Condensed Matter Physics

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