论文标题
原子 - 光杂种量子陀螺仪
Atom-light hybrid quantum gyroscope
论文作者
论文摘要
由于其较高的旋转灵敏度，提出了一种新型的原子 - 光杂种量子陀螺仪（ALHQG）。它由基于原子拉曼扩增过程的量子束分配器/重组（QBS/c）作为旋转速率和原子集合的光学sagnac循环和原子集合组成，以实现光波和原子旋转波的分裂和重组。通过Sagnac环与QB/C之间的量子相关性可以增强旋转灵敏度。研究最佳的工作条件以达到最佳灵敏度。数值结果表明，旋转灵敏度可以在理想条件下击败标准量子极限（SQL）。即使在实际情况下衰减的情况下，ALHQG的最佳灵敏度仍然可以击败SQL，并且比光纤陀螺仪（FOG）更好。这种ALHQG实际上可以用于现代惯性导航系统。
A new type of atom-light hybrid quantum gyroscope (ALHQG) is proposed due to its high rotation sensitivity. It consists of an optical Sagnac loop to couple rotation rate and an atomic ensemble as quantum beam splitter/recombiner (QBS/C) based on atomic Raman amplification process to realize the splitting and recombination of the optical wave and the atomic spin wave. The rotation sensitivity can be enhanced by the quantum correlation between Sagnac loop and QBS/C. The optimal working condition is investigated to achieve the best sensitivity. The numerical results show that the rotation sensitivity can beat the standard quantum limit (SQL) in ideal condition. Even in the presence of the attenuation under practical condition, the best sensitivity of the ALHQG can still beat the SQL and is better than that of a fiber optic gyroscope (FOG). Such an ALHQG could be practically applied for modern inertial navigation system.
