Hannover 2013 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 35: Poster I

Q 35.15: Poster

Tuesday, March 19, 2013, 16:00–18:30, Empore Lichthof

A scanning probe quantum processor using NV centres — •Andreas Brunner, Friedemann Reinhard, and Jörg Wrachtrup — 3. Physikalisches Institut und Forschungszentrum SCoPE, Universität Stuttgart, Germany

The nitrogen-vacancy (NV) colour centre in diamond has shown to be a promising candidate for applications in spin sensing [1] and quantum information [2]. This is due to its electron spin structure featuring long coherence times and allowing optical state readout.

We pursue the realisation of a scanning-probe quantum processor by combining a mobile NV read-write-head with a stationary array of solid state quits. The scanning probe consists of an NV placed in the tip of microfabricated diamond pillar. This structure equally acts as a photonic waveguide and enables highly efficient fluorescence readout.

Our planned setup for these experiments is presented including our progress on the fabrication of such scanning NV sensors.

[1] N. Zhao et al., Nature Nanotechnology 7, 657-662 (2012)

[2] N. Mizuochi et al., Nature Photonics 6, 299-303 (2012)