研究目的
Investigating the performance of a quantum gyroscope based on a spinning whispering-gallery-mode resonator with loss and gain.
研究成果
The study demonstrates that the angular velocity of rotation can be detected by measuring either the average photon numbers in the steady state or the ?uctuation spectra of the output ?elds of resonators. The optical gain enhances the performance of rotation sensing by narrowing and heightening the spectrum peaks. The scheme does not require working near the exceptional point, making it more convenient for experimental realization.
研究不足
The study is theoretical and does not involve experimental validation. The practical realization of the proposed scheme may face challenges in controlling the gain and loss rates and the coupling strength between the resonators.
1：Experimental Design and Method Selection:
The study involves a theoretical model of two coupled whispering-gallery-mode resonators, one with gain and the other with loss, where the active resonator is rotated to induce the Sagnac effect. The eigenfrequencies of the supermodes are analyzed to detect the angular velocity of rotation.
2：Sample Selection and Data Sources:
The system consists of two coupled whispering-gallery-mode resonators, with parameters set to simulate the effects of rotation on the system's optical modes.
3：List of Experimental Equipment and Materials:
The theoretical model does not specify physical equipment but involves parameters such as coupling strength J, gain rate g, and decay rates κa and κb.
4：Experimental Procedures and Operational Workflow:
The study involves solving the quantum Langevin equations for the system to analyze the average photon number in the steady state and the ?uctuation spectra of the output ?elds.
5：Data Analysis Methods:
The analysis includes plotting the behavior of average photon number and ?uctuation spectra as functions of the driving field frequency for different Sagnac-Fizeau shifts.
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