Sébastien Pezzagna, Dominik Wildanger, Paul Mazarov, Andreas D. Wieck, Yanko Sarov, Ivo Rangelow, Boris Naydenov, Fedor Jelezko, Stefan W. Hell and Jan Meijer Nanoscale Engineering and Optical Addressing of Single Spins in Diamond Small 6
The artificial creation of shallow nitrogen-vacancy (NV) centres in diamond with 25 nm lateral resolution is performed by collimated implantation of low-energy nitrogen ions. The electron spin associated to this defect is the most promising qubit for a scalable quantum computer working at room temperature. Individual optical addressing of two single centres separated by only 16 nm is demonstrated with stimulated emission depletion (STED) microscopy.
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