Here we report experimental evidence for gravitationalquantum 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。
2
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。
3
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.