Abstract
Abstract
The angular momentum carries crucial information on the physical nature of quantum matter. We propose and analyze MEMS gyroscope techniques suitable for measuring the angular momentum of mesoscopic quantum matter specimens at low temperatures. We bear in mind that it is not always possible to implement mode-matched gyroscopes, which we will refer to as degenerate gyroscopes, for the maximal signal sensitivity for these applications due to the constraints given by the cryogenic environment and the types of samples available for experiments. Because the analysis of non-degenerate gyroscopes in the literature is somewhat limited, we analyze and compare the ultimate angular momentum sensitivity of both degenerate and non-degenerate gyroscopes under amplitude and frequency modulation operation. Calculation based on our prototype device shows that the frequency modulation extends the operational range and improves sensitivity at low temperatures.
Funder
Samsung Science and Technology Foundation
National Research Foundation of Korea
Subject
Condensed Matter Physics,Mathematical Physics,Atomic and Molecular Physics, and Optics
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献