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Detecting Topological Defect Dark Matter Using Coherent Laser Ranging System.

Wanpeng Yang¹, Jianxiao Leng¹, Shuangyou Zhang¹

¹School of Electronics Engineering and Computer Science, Peking University, Beijing, 100871, China.

Scientific Reports

|July 9, 2016

Summary

This summary is machine-generated.

We propose a novel method to detect topological defect dark matter using dual-comb laser ranging. This technique measures changes in light

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Area of Science:

Physics
Astronomy
Metrology

Background:

Optical frequency combs have advanced distance metrology with precise wavelength capabilities.
Current applications of optical frequency combs are limited to absolute distance measurements.
The nature of dark matter remains one of the most significant unsolved problems in physics.

Purpose of the Study:

To propose a novel scheme for detecting topological defect dark matter.
To utilize a coherent laser ranging system for identifying non-gravitational dark matter signatures.
To explore the interaction of topological defects with standard model particles.

Main Methods:

A coherent laser ranging system employing dual-optical frequency combs and an optical clock.
Detection of time delays in light propagation caused by the refractive index changes induced by topological defects.
Utilizing dual-comb interferometry to measure absolute optical path length, avoiding systematic errors.

Main Results:

The proposed scheme can detect alterations in the optical path length of light.
These alterations are caused by the interaction of topological defect dark matter with the fabric of spacetime.
Dual-comb interferometry offers a more robust measurement compared to continuous wave laser interferometry.

Conclusions:

The proposed dual-comb laser ranging system offers a new pathway for detecting topological defect dark matter.
This method provides a unique approach to probe dark matter through its potential interaction with light.
The technique promises to advance our understanding of dark matter and its cosmological implications.