Cheng Yu, Lin Jiadu, Sheng Jie, Yanagida Tsutomu T
Tsung-Dao Lee Institute and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China.
Key Laboratory for Particle Astrophysics and Cosmology (MOE) and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University, Shanghai, 200240, China.
Sci Rep. 2024 Dec 28;14(1):30985. doi: 10.1038/s41598-024-82092-5.
The experimental verification of the Newton law of gravity at small scales has been a longstanding challenge. Recently, torsion balance experiments have successfully measured gravitational force at the millimeter scale. However, testing gravity force on quantum mechanical wave function at small scales remains difficult. In this paper, we propose a novel experiment that utilizes the Josephson effect to detect the different evolution of quantum phase induced from the potential difference caused by gravity. We demonstrate that this experiment can test gravity quantum mechanically at the millimeter scale, and also has a potential to investigate the parity invariance of gravity at small scales.
在小尺度下对牛顿引力定律进行实验验证一直是一项长期挑战。最近，扭秤实验已成功在毫米尺度上测量了引力。然而，在小尺度下测试引力对量子力学波函数的影响仍然困难重重。在本文中，我们提出了一种新颖的实验，该实验利用约瑟夫森效应来检测由引力引起的电势差所诱导的量子相位的不同演化。我们证明，该实验能够在毫米尺度上对引力进行量子力学测试，并且还有潜力在小尺度下研究引力的宇称不变性。
