Signatures of the quantum nature of gravity in the differential motion of two masses
Signatures of the quantum nature of gravity in the differential motion of two masses
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DOI：
10.1088/2058-9565/ac1adf
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发表时间：
2021-04
影响因子：
6.7
通讯作者：
A. Datta;H. Miao
中科院分区：
文献类型：
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作者：
A. Datta;H. Miao
我们证明了引力量子本质的一个特征是两个相同质量相对于其共模的微分运动的量子力学压缩。这是因为引力相互作用仅取决于两个质量的相对位置。原则上，这种压缩等价于质量之间的量子纠缠。在实际应用中，检测压缩比检测纠缠更可行。为此，我们提出了一个光学干涉方案来伪造假设的重力模型。
We show that a signature of the quantum nature of gravity is the quantum mechanical squeezing of the differential motion of two identical masses with respect to their common mode. This is because the gravitational interaction depends solely on the relative position of the two masses. In principle, this squeezing is equivalent to quantum entanglement between the masses. In practice, detecting the squeezing is more feasible than detecting the entanglement. To that end, we propose an optical interferometric scheme to falsify hypothetical models of gravity.