论文标题
Sagnac干涉仪和重力的量子性质
Sagnac Interferometer and the Quantum Nature of Gravity
论文作者
论文摘要
我们使用SAGNAC干涉仪的量子变体来争论重力的量子性质，并制定等效原理的量子版本。我们首先提出了在汉密尔顿形式主义中传统的Sagnac Matter-Wave干涉仪中获得的阶段的原始推导。然后，我们在两个关键方面修改干涉仪。干扰物质波沿着与中心的两个不同的距离干扰，干涉仪以两个不同角速度的叠加制备。我们认为，如果物质波的径向和角度自由度通过该实验纠缠在一起，那么，通过等效原理，重力场必须是非古典的。
We use a quantum variant of the Sagnac interferometer to argue for the quantum nature of gravity as well as to formulate a quantum version of the equivalence principle. We first present an original derivation of the phase acquired in the conventional Sagnac matter-wave interferometer, within the Hamiltonian formalism. Then we modify the interferometer in two crucial respects. The interfering matter wave is interfered along two different distances from the centre and the interferometer is prepared in a superposition of two different angular velocities. We argue that if the radial and angular degrees of freedom of the matter wave become entangled through this experiment, then, via the equivalence principle, the gravitational field must be non-classical.
