Non-classical states of NV and N impurities in diamond

POSTER

Abstract

We present schemes that take advantage of the interactions of NV centers in diamonds with neighboring N impurities, which may allow improved NV performance as qubits and quantum sensors. For example, we describe pulse sequences that may allow polarization of the N spins and entanglement of N spins with the NV spin. Applying such schemes to NV ensembles may allow creation of a large number of entangled NV-N pairs. In addition, a similar approach may allow creation of a Schrodinger cat state of several N spins interacting with one NV. Finally, we find that under certain conditions, N- mediated NV-NV interactions become important, which may allow creation of squeezed states in the NV ensemble.

Authors

  • Chinmay Belthangady

    • Harvard University

  • Nir Bar-Gill

    • Harvard University

  • David Le Sage

    • Harvard University

  • My Linh Pham

    • Harvard University

  • Paola Cappellaro

    • MIT

  • Ronald Walsworth

    • Harvard University