Suppression of the Temperature Dependence in Measurements of Superposition States of the Nucleus Spin at the Nitrogen-Vacancy Center in Diamond

Nitrogen-vacancy color centers in diamond can be used to measure rotation. However, the rotation readout algorithm known to date is sensitive to the in-phase shift of nuclear transition frequencies caused by diamond temperature change. In this paper, an algorithm of pulsed detection of the phase accumulated by a superposition state in which the signal of in-phase frequency shift of the transition frequency is suppressed, thus the effect of the temperature dependence of quadrupole splitting on rotation rate measurements is suppressed.