测量毫克质量引力的微机械原理验证实验
A micromechanical proof-of-principle experiment for measuring the gravitational force of milligram masses
摘要：
本文解决了一个简单的问题：如何小可以使一个引力源质量，仍然检测到它的引力耦合到附近的测试质量？我们描述了一个实验方案的基础上，微机械传感观察重力之间的毫克级源质量，从而提高目前最小的源质量值的三个数量级，甚至可能更多。我们还讨论了这种测量的影响，提高精度测量牛顿常数和新一代的实验在量子物理和重力之间的接口。
英文摘要：
This paper addresses a simple question: how small can one make a gravitational source mass and still detect its gravitational coupling to a nearby test mass? We describe an experimental scheme based on micromechanical sensing to observe gravity between milligram-scale source masses, thereby improving the current smallest source mass values by three orders of magnitude and possibly even more. We also discuss the implications of such measurements both for improved precision measurements of Newton's constant and for a new generation of experiments at the interface between quantum physics and gravity.
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