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Related Experiment Video

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Neutron Crystallography Data Collection and Processing for Modelling Hydrogen Atoms in Protein Structures

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Published on: December 1, 2020

How to test atom and neutron neutrality with atom interferometry.

Asimina Arvanitaki¹, Savas Dimopoulos, Andrew A Geraci

¹Department of Physics, Stanford University, Stanford, California 94305, USA. aarvan@stanford.edu

Physical Review Letters

|June 4, 2008

Summary

This study introduces an atom-interferometry experiment to detect extremely small electric charges. The novel method significantly improves sensitivity for measuring atomic and neutron charges.

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Area of Science:

Atomic physics
Quantum mechanics
Particle physics

Background:

The scalar Aharonov-Bohm effect is a quantum mechanical phenomenon.
Precise measurement of fundamental particle charges is crucial for physics advancements.
Current experimental limits for atomic and neutron charges are insufficient for certain theoretical predictions.

Purpose of the Study:

To propose a novel atom-interferometry experiment.
To detect electric charges at the 10{-28}e level.
To establish new laboratory limits for neutron charges.

Main Methods:

Utilizing atom interferometry.
Leveraging the scalar Aharonov-Bohm effect.
Developing a high-sensitivity charge detection apparatus.

Main Results:

The proposed experiment can detect atomic charges down to 10{-28}e.
This represents an improvement of 8 orders of magnitude over current laboratory limits.
The setup can probe neutron charges down to 10{-28}e, 7 orders of magnitude below existing bounds.

Conclusions:

The proposed atom-interferometry experiment offers unprecedented sensitivity for charge detection.
This technique opens new avenues for fundamental physics research.
The experiment will significantly advance our understanding of elementary particle properties.