Slow spin dynamics in a 2D dipolar spin ensemble on the surface of diamond

ORAL

Abstract

We observe remarkably slow local spin dynamics in a two-dimensional disordered many-body dipolar spin system, formed by naturally-occurring electronic spins on the surface of a diamond crystal. Shallow NV centers are used to access individual spins, or small spin sub-ensembles. Effective disorder and spin-spin interactions can be controlled by driving the spin system. Local spin diffusion is suppressed by up to a factor of 100, compared to the timescale given by the spin-spin interactions. This slow-down of spin relaxation can dramatically improve the sensitivity of nanoscale-resolution field sensing.

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Authors

  • Alexander Sushkov

    • Boston University

  • Kristine Rezai

    • Boston University, Harvard University

  • Soonwon Choi

    • Harvard University

  • Phillip Weinberg

    • Boston University

  • Emma Rosenfeld

    • Harvard University

  • Mikhail Lukin

    • Harvard University