Proposal for a spin network using a qubit in diamond-peptide unit cell

ORAL

Abstract

Synthetic peptides can nowadays be custom-tailored to one's needs to the extent that it is possible to determine their exact length and structure. Using such rather simple molecules, we propose using them, together with a qubit, in the form of a single nitrogen-vacancy center in diamond being the read-out platform, as the basic unit cell in a conceivable molecular quantum spin network.
We demonstrate the features of this unit cell by presenting a detailed characterization of the different dipolar couplings between the qubit and a doubly-labeled polyproline molecule. Finally, we propose several schemes by which we envision applications for such a spin network, e.g. the understanding of the flow of information across a one-dimensional chain and the realization of a quantum critical point within such a network.

*We acknowledge financial support from the EU via grant no. 611143 (DIADEMS) and the DFG via SPP 1601 and Research Group 1493. F.F.d.O. acknowledges CNPq through project no. 204246/2013-0. A.F. acknowledges the Alexander von Humboldt Foundation.

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Presenters

  • Amit Finkler

    • Chemical and Biological Physics, Weizmann Institute of Science

Authors

  • Lukas Schlipf

    • Max Planck Institute for Solid State Research

  • Thomas Oeckinghaus

    • 3. Physikalisches Institut, Universität Stuttgart

  • Kebiao Xu

    • Chinese Academy of Sciences Key Laboratory of Microscale Magnetic Resonance and Department of Modern Physics, University of Science and Technology of China

  • Durga Dasari

    • Max Planck Institute for Solid State Research
    • Univ Stuttgart

  • Andrea Zappe

    • 3. Physikalisches Institut, Universität Stuttgart
    • Physics Department, University of Stuttgart

  • Felipe Fávaro de Oliveira

    • 3. Physikalisches Institut, Universität Stuttgart
    • Physics Department, University of Stuttgart

  • Bastian Kern

    • Max Planck Institute for Solid State Research

  • Mykhailo Azarkh

    • Department of Chemistry, Zukunftskolleg, and Konstanz Research School Chemical Biology, Universität Konstanz

  • Malte Drescher

    • Department of Chemistry, Zukunftskolleg, and Konstanz Research School Chemical Biology, Universität Konstanz

  • Markus Ternes

    • Max Planck Institute for Solid State Research

  • Klaus Kern

    • Max Planck Institute for Solid State Research

  • J. Wrachtrup

    • University Stuttgart
    • 3. Physikalisches Institut, Universität Stuttgart
    • Univ Stuttgart
    • 3rd Institute of Physics, University of Stuttgart
    • University of Stuttgart
    • Physics Department, University of Stuttgart

  • Amit Finkler

    • Chemical and Biological Physics, Weizmann Institute of Science