论文标题
引力的噪音
The Noise of Gravitons
论文作者
论文摘要
我们表明，当将重力场通过机械力量子进行处理时，它会在引力波检测器的臂长度上引起波动 - 噪声。噪声的特征取决于重力场的量子状态，并且可以在几种有趣的情况下准确计算。对于连贯的状态而言，噪声很小，但是在热状态下，它可以大大增强。检测这种基本噪声将构成对重力量化和重力存在的直接证据。
We show that when the gravitational field is treated quantum-mechanically, it induces fluctuations -- noise -- in the lengths of the arms of gravitational wave detectors. The characteristics of the noise depend on the quantum state of the gravitational field, and can be calculated exactly in several interesting cases. For coherent states the noise is very small, but it can be greatly enhanced in thermal and (especially) squeezed states. Detection of this fundamental noise would constitute direct evidence for the quantization of gravity and the existence of gravitons.
