Isotopic identification of engineered nitrogen-vacancy spin qubits in ultrapure diamond

T. Yamamoto, S. Onoda, T. Ohshima +15

Nitrogen impurities help to stabilize the negatively-charged-state of NV${}^{-}$ in diamond, whereas magnetic fluctuations from nitrogen spins lead to decoherence of NV${}^{-}$ qubits. It…