Probing and controlling dimensionality of strongly interacting spin ensembles

POSTER

Abstract

Understanding the decoherence of a strongly interacting spin ensemble remains an important challenge at the interface of basic science and quantum technology. Here, we experimentally investigate the electronic spin coherence of nitrogen-vacancy (NV) centers in a nitrogen-14 enriched delta-doped diamond. In this sample, the average spin-spin spacing (\textasciitilde 5 nm) is close to the thickness of the delta-doped layer, leading to a quasi-two dimensional spin system. Compared to conventional 3D samples, we observe an improvement of NV coherence times with a distinct temporal profile. We provide a theoretical model for the observed spin coherent dynamics as a function of dimension. Our work provides new opportunities for exploring novel non-equilibrium physics.

Authors

  • Thomas Mittiga

    • University of California, Berkeley

  • Chong Zu

    • University of California, Berkeley

  • Simon Meynell

    • University of California, Santa Barbara

  • Bingtian Ye

    • University of California, Berkeley

  • Francisco Machado

    • University of California, Berkeley

  • Satcher Hsieh

    • University of California, Berkeley

  • Prabudhya Bhattacharyya

    • University of California, Berkeley

  • Soonwon Choi

    • University of California, Berkeley

  • Ania Jayich

    • University of California, Santa Barbara

  • Norman Yao

    • University of California, Berkeley