Citation:
P London, Scheuer, J, Cai, JM , Schwarz, I, Retzker, A, Plenio, MB , Katagiri, M, Teraji, T, Koizumi, S, Isoya, J, Fischer, R, McGuinness, LP , Naydenov, B, and Jelezko, F. 8/5/2013.
“Detecting And Polarizing Nuclear Spins With Double Resonance On A Single Electron Spin”. Physical Review Letters, 111, 6.
https://doi.org/10.1103/PhysRevLett.111.067601.
Abstract:
We report the detection and polarization of nuclear spins in diamond at room temperature by using a single nitrogen-vacancy (NV) center. We use Hartmann-Hahn double resonance to coherently enhance the signal from a single nuclear spin while decoupling from the noisy spin bath, which otherwise limits the detection sensitivity. As a proof of principle, we (i) observe coherent oscillations between the NV center and a weakly coupled nuclear spin and (ii) demonstrate nuclear-bath cooling, which prolongs the coherence time of the NV sensor by more than a factor of 5. Our results provide a route to nanometer scale magnetic resonance imaging and novel quantum information processing protocols.