Dissipative effects on a generation scheme of a W state in an array of coupled Josephson junctions

R. Migliore, M. Scala, A. Napoli, Kazuya Yuasa, Hiromichi Nakazato, A. Messina

    Research output: Contribution to journalArticle

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    Abstract

    The dynamics of an open quantum system, consisting of three superconducting qubits interacting with independent reservoirs, is investigated to elucidate the effects of the environment on a unitary generation scheme of W states (Migliore R et al 2006 Phys. Rev. B 74 104503). To this end a microscopic master equation is constructed and its exact resolution predicts the generation of a Werner-like state instead of the W state. A comparison between our model and a more intuitive phenomenological model is also considered, in order to find the limits of the latter approach in the case of structured reservoirs.

    Original languageEnglish
    Article number075503
    JournalJournal of Physics B: Atomic, Molecular and Optical Physics
    Volume44
    Issue number7
    DOIs
    Publication statusPublished - 2011 Apr 14

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    Josephson junctions

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Atomic and Molecular Physics, and Optics

    Cite this

    Dissipative effects on a generation scheme of a W state in an array of coupled Josephson junctions. / Migliore, R.; Scala, M.; Napoli, A.; Yuasa, Kazuya; Nakazato, Hiromichi; Messina, A.

    In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 44, No. 7, 075503, 14.04.2011.

    Research output: Contribution to journalArticle

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