Multipartite entanglement among single spins in diamond

P. Neumann, N. Mizuochi, F. Rempp, P. Hemmer, H. Watanabe, S. Yamasaki, V. Jacques, T. Gaebel, F. Jelezko, J. Wrachtrup*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    560 Citations (Scopus)

    Abstract

    Robust entanglement at room temperature is a necessary requirement for practical applications in quantum technology. We demonstrate the creation of bipartite- and tripartite-entangled quantum states in a small quantum register consisting of individual 13C nuclei in a diamond lattice. Individual nuclear spins are controlled via their hyperfine coupling to a single electron at a nitrogen-vacancy defect center. Quantum correlations are of high quality and persist on a millisecond time scale even at room temperature, which is adequate for sophisticated quantum operations.

    Original languageEnglish
    Pages (from-to)1326-1329
    Number of pages4
    JournalScience
    Volume320
    Issue number5881
    DOIs
    Publication statusPublished - 6 Jun 2008

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