Motional Narrowing of Optically Detected Single Nuclear Spin Qubit

POSTER

Abstract

We study quantum dynamics of individual nuclear spin qubit coupled to optically excited, proximal single electron spin. We show that nuclear spin dephasing can be very slow, even under conditions of fast optical excitation. We present a detailed theoretical model for this process, which is related to motional narrowing in NMR as well as quantum Zeno effect. These results are compared with detailed experimental study of single nuclear spins associated with~nitrogen-vacancy centers in diamond. Finally, we discuss the relevance of these results to realization of~quantum information processing.

Authors

  • Liang Jiang

    • Harvard University
    • Department of Physics, Harvard University

  • M.V. Gurudev Dutt

    • Harvard University
    • Department of Physics, Harvard University

  • Lily Childress

    • Harvard University
    • Department of Physics, Harvard University

  • Emre Togan

    • Harvard University
    • Department of Physics, Harvard University

  • Mikhail D. Lukin

    • Physics Department, Harvard University
    • Physics Department, Harvard University, Cambridge, MA
    • Harvard University
    • Department of Physics, Harvard University
    • Departement of Physics, Harvard University