Here we report experimental evidence for gravitational quantum bound states of neutrons.

在这里我们报告的实验证据是中子的引力量子束缚态。

youdao

Try and work out the gravitational force between two objects in terms of a quantum graviton, however, and you quickly run into trouble-the answer to every calculation is infinity.

但是尝试用量子引力子解决两个物体之间的万有引力，你很快会遇到困难——每种计算的答案都是无穷大量。

youdao

One area where the conflict between quantum theory and relativity comes to the fore is in the gravitational constant, g, the quantity that describes the strength of gravity.

凸显量子理论和相对论冲突的地方之一是引力常数g，这个量描述引力的强度。

youdao

The early universe is also thought to have produced a background of gravitational waves from quantum fluctuations.

ECONOMIST: Fundamental physics

Building a human-sized wormhole, for example, would require harnessing vast amounts of peculiar quantum field energy and deploying gravitational stabilizing technology that would need the resources of a cosmic super-civilization.

CNN: Time travel: Can it really be done?