论文标题
量子纠缠的Sagnac干涉仪
Quantum entangled Sagnac interferometer
论文作者
论文摘要
SU（1,1）干涉仪（SUI）是一种新型的干涉仪类型，它使用直接纠缠的量子场来传感相变。对于旋转传感，通常采用Sagnac几何形状。但是，由于SUI取决于两个臂的相位总和，因此传统的sagnac几何形状在应用于SUI时会导致空信号。在本文中，我们通过嵌套SU（1,1）干涉仪内部修改传统的SagNAC干涉仪。我们表明，旋转信号分别来自标记为“经典”和“量子”的两个部分，以及使用与SUI增益相关的因素增强的旋转信号，量子纠缠段用于传感。
SU(1,1) interferometer (SUI) is a novel type of interferometer that uses directly entangled quantum fields for sensing phase change. For rotational sensing, Sagnac geometry is usually adopted. However, because SUI depends on the phase sum of the two arms, traditional Sagnac geometry, when applied to SUI, will result in null signal. In this paper, we modify the traditional Sagnac interferometer by nesting SU(1,1) interferometers inside. We show that the rotational signal comes from two parts labeled as "classical" and "quantum", respectively, and the quantum part, where quantum entangled fields are used for sensing, has rotational signal enhanced by a factor related to the gain of the SUI.
