Geometric Phase Measurement of Nitrogen-Vacancy Center in Diamond Suitable for Quantum Gyro

The Nitrogen-Vacancy(NV) center has recently emerged as a powerful quantum system, combining the good coherence properties and control techniques of atomic systems with the small size and fabrication capabilities of solid-state devices. We report on a measurement of a single electron-spin phase shift arising directly from physical rotation. This phase shift is observed by measuring the phase difference in a distortion microwave frequency of 2880 MHz, and it can accumulate nonlinearly in time. Carrier rotation information can be obtained by measuring the quantum geometric phase accumulation. We demonstrate quantum control of a NV center within a specific rotation system and a rotational period comparable to the NV spin coherence time T
2
*. These characteristics contribute as well to make this quantum system a sensitive and compact rotation sensor.