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Properties of nitrogen-vacancy centers in diamond: the group theoretic approach

2011; IOP Publishing; Volume: 13; Issue: 2 Linguagem: Inglês

10.1088/1367-2630/13/2/025025

1367-2630

J. R. Maze, Ádám Gali, Emre Togan, Yiwen Chu, Alexei Trifonov, Efthimios Kaxiras, M. D. Lukin,

Electronic and Structural Properties of Oxides

We present a procedure that makes use of group theory to analyze and predict the main properties of the negatively charged nitrogen-vacancy (NV) center in diamond. We focus on the relatively low temperatures limit where both the spin-spin and spin-orbit effects are important to consider. We demonstrate that group theory may be used to clarify several aspects of the NV structure, such as ordering of the singlets in the ($e^2$) electronic configuration, the spin-spin and the spin-orbit interactions in the ($ae$) electronic configuration. We also discuss how the optical selection rules and the response of the center to electric field can be used for spin-photon entanglement schemes. Our general formalism is applicable to a broad class of local defects in solids. The present results have important implications for applications in quantum information science and nanomagnetometry.