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Proposal for a quantum mechanical test of gravity at millimeter scale.
Yu Cheng1,2, Jiadu Lin3,4, Jie Sheng3,4
1Tsung-Dao Lee Institute and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China. chengyu@sjtu.edu.cn.
Scientific Reports
|December 27, 2024
Summary
This study proposes a novel experiment using the Josephson effect to test quantum gravity at the millimeter scale. The method detects quantum phase evolution influenced by gravitational potential, potentially probing gravity
Area of Science:
- Quantum physics
- Gravitational physics
- Experimental physics
Background:
- Verifying Newton's law of gravity at small scales is challenging.
- Torsion balance experiments have measured gravity at millimeter scales.
- Testing gravity's effect on quantum wave functions at small scales remains difficult.
Purpose of the Study:
- To propose a novel experiment for testing quantum gravity at the millimeter scale.
- To utilize the Josephson effect for detecting gravity's influence on quantum phenomena.
- To investigate gravity's parity invariance at small scales.
Main Methods:
- Proposing a novel experiment based on the Josephson effect.
- Utilizing the quantum phase evolution induced by gravitational potential difference.
- Employing sensitive detection of phase shifts in quantum systems.
Main Results:
- The proposed experiment can test quantum gravity at the millimeter scale.
- The experiment allows for the detection of gravity's effect on quantum phase.
- Potential for investigating gravity's parity invariance at small scales.
Conclusions:
- The Josephson effect offers a viable method for quantum gravity tests at millimeter scales.
- This approach advances the experimental verification of gravitational laws in the quantum regime.
- The experiment opens new avenues for exploring fundamental physics, including gravity's symmetries.
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