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Spin-polarization mechanisms of the nitrogen-vacancy center in diamond. 2010

Paul Delaney, and James C Greer, and J Andreas Larsson
Queen's University Belfast, University Road, Belfast, BT7 1NN, Northern Ireland. p.delaney@qub.ac.uk

The nitrogen-vacancy (NV) center in diamond has shown great promise for quantum information due to the ease of initializing the qubit and of reading out its state. Here we show the leading mechanism for these effects gives results opposite from experiment; instead both must rely on new physics. Furthermore, NV centers fabricated in nanometer-sized diamond clusters are stable, motivating a bottom-up qubit approach, with the possibility of quite different optical properties to bulk.

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