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Detecting Dark Matter Using Optically Trapped Rydberg Atom Tweezer Arrays.

So Chigusa¹, Taiyo Kasamaki², Toshi Kusano³

¹Massachusetts Institute of Technology, Center for Theoretical Physics-a Leinweber Institute, Cambridge, Massachusetts 02139, USA.

Physical Review Letters

|May 1, 2026

Summary

This summary is machine-generated.

Scientists propose a novel method to detect wavelike dark matter (DM) using Rydberg atoms. This approach could explore new dark matter parameter spaces with high sensitivity.

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Area of Science:

Quantum physics
Particle physics
Astrophysics

Background:

Dark matter (DM) is a major component of the universe, but its nature remains unknown.
Wavelike dark matter candidates, such as dark photons, are theoretically motivated.
Rydberg atoms, with their large size and sensitivity to external fields, offer a promising platform for precision measurements.

Purpose of the Study:

To propose a new experimental scheme for detecting wavelike dark matter using Rydberg atoms.
To demonstrate the feasibility and potential sensitivity of this detection method.

Main Methods:

Utilizing Rydberg atoms trapped in optical tweezer arrays.
Observing DM-induced excitations between Rydberg states via the effective electric field.
Scanning dark matter mass using Zeeman and diamagnetic shifts under an external magnetic field.

Main Results:

The proposed experiment demonstrates high sensitivity for dark matter detection.
The scheme can probe previously unexplored regions of dark-photon coupling strengths and masses.

Conclusions:

Rydberg atoms provide a viable and sensitive tool for detecting wavelike dark matter.
This experimental approach opens new avenues for exploring dark matter physics.