Theory of the ground state spin of the NV- center in diamond: II. Spin solutions, time-evolution, relaxation and inhomogeneous dephasing

摘要

The ground state spin of the negatively charged nitrogen-vacancy center indiamond has many exciting applications in quantum metrology and solid statequantum information processing, including magnetometry, electrometry, quantummemory and quantum optical networks. Each of these applications involve theinteraction of the spin with some configuration of electric, magnetic andstrain fields, however, to date there does not exist a detailed model of thespin's interactions with such fields, nor an understanding of how the fieldsinfluence the time-evolution of the spin and its relaxation and inhomogeneousdephasing. In this work, a general solution is obtained for the spin in anygiven electric-magnetic-strain field configuration for the first time, and theinfluence of the fields on the evolution of the spin is examined. Thus, thiswork provides the essential theoretical tools for the precise control andmodeling of this remarkable spin in its current and future applications.