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The nitrogen-vacancy colour centre in diamond
Authors:Marcus W Doherty  Neil B Manson  Paul Delaney  Fedor Jelezko  Jörg Wrachtrup  Lloyd CL Hollenberg
Institution:1. School of Physics, University of Melbourne, VIC 3010, Australia;2. Laser Physics Centre, Research School of Physics and Engineering, Australian National University, ACT 0200, Australia;3. School of Mathematics and Physics, Queens University Belfast, Northern Ireland BT7 1NN, United Kingdom;4. Institut für Quantenoptik, Universität Ulm, Ulm D-89073, Germany;5. 3rd Institute of Physics and Research Center SCOPE, University Stuttgart, Pfaffenwaldring 57, D-70550 Stuttgart, Germany;6. Tyndall National Institute, Lee Maltings, Prospect Row, Cork, Ireland
Abstract:The nitrogen-vacancy (NV) colour centre in diamond is an important physical system for emergent quantum technologies, including quantum metrology, information processing and communications, as well as for various nanotechnologies, such as biological and sub-diffraction limit imaging, and for tests of entanglement in quantum mechanics. Given this array of existing and potential applications and the almost 50 years of NV research, one would expect that the physics of the centre is well understood, however, the study of the NV centre has proved challenging, with many early assertions now believed false and many remaining issues yet to be resolved. This review represents the first time that the key empirical and ab initio results have been extracted from the extensive NV literature and assembled into one consistent picture of the current understanding of the centre. As a result, the key unresolved issues concerning the NV centre are identified and the possible avenues for their resolution are examined.
Keywords:Diamond  Colour centre  Nitrogen-vacancy
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