Entanglement replication via quantum repeated interactions

Pierre Wendenbaum, Thierry Platini, Dragi Karevski

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    We study entanglement creation between two independent XX chains, which are repeatedly coupled locally to spin-1/2 Bell pairs. We show analytically that in the steady state the entanglement of the Bell pairs is perfectly transferred to the chains, generating large-scale interchain pair correlations. However, before the steady state is reached, within a growing causal region around the interacting locus the chains are found in a current driven nonequilibrium steady state (NESS). In the NESS, the chains cross entanglement decays exponentially with respect to the distance to the boundary sites with a typical length scale which is inversely proportional to the driving current.

    Original languageEnglish
    Article number040303
    JournalPhysical Review A - Atomic, Molecular, and Optical Physics
    Volume91
    Issue number4
    DOIs
    Publication statusPublished - 27 Apr 2015

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics

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