Heidelberg 2015 – wissenschaftliches Programm
A 6.4: Vortrag
Montag, 23. März 2015, 15:30–15:45, P/H1
Highly sensitive magnetic fields sensing with the nitrogen vacancy center in diamond by using the rotary echo scheme — •Alexander Stark1,3, Xi Kong1, Vagharsh Mkhitaryan2, Viatcheslav Dobrovitski2, Ulrik L. Andersen3, and Fedor Jelezko1 — 1Institut für Quantenoptik, Universität Ulm, 89081 Ulm, Germany — 2Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA — 3Department of Physics, Technical University of Denmark, Fysikvej, 2800 Kgs. Lyngby, Denmark
Single defect centres in diamond and especially the nitrogen-vacancy (NV) show remarkable physical properties making them ideal candidates for single photon sources, qubits and nano-scale magnetic field sensors . In a continuous decoupling protocol  the electron spin of the NV center is subjected to continuous Rabi driving with a periodically alternating phase forming the Rotary Echo (RE) scheme . We show that this technique improves greatly the resolution for magnetic field sensing (by a factor of 10) compared to conventional dynamical decoupling techniques . We believe, that RE is one of the promising candidates for the detection of individual nuclear spins in the emerging field of diamond magnetometry.
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