Entanglement replication via quantum repeated interactions

Pierre Wendenbaum, Thierry Platini, Dragi Karevski

Research output: Contribution to journalArticle

4 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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