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Experimental Distributed Quantum Sensing In A Noisy Environment.

Home
Experimental Distributed Quantum Sensing In A Noisy Environment.

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Experimental Distributed Quantum Sensing in a Noisy Environment.

J Bate¹, A Hamann², M Canteri¹

¹Universität Innsbruck, Institut für Experimentalphysik, Technikerstraße 25, 6020 Innsbruck, Austria.

Physical Review Letters

|December 12, 2025

View abstract on PubMed

Summary

This summary is machine-generated.

Quantum sensors offer precision but are vulnerable to noise. This study demonstrates a quantum sensing protocol using trapped ions that isolates signals from noise, significantly outperforming classical methods and applicable to quantum sensor networks.

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Area of Science:

Quantum sensing
Quantum information science
Experimental physics

Background:

Quantum states in sensors provide precision advantages.
Noise can compromise these quantum sensing advantages.
Theoretical work suggests noise spatial profiles different from the signal can be exploited.

Purpose of the Study:

To experimentally demonstrate a quantum sensing protocol.
To show how quantum entanglement can maintain and improve sensing precision in the presence of noise.
To compare the quantum protocol's performance against classical strategies.

Main Methods:

Utilizing trapped-ion sensors.
Creating an entangled state of multidimensional sensors.
Implementing a protocol to isolate signals from noise with different spatial profiles.

Main Results:

The quantum protocol successfully isolated and detected signals.
The protocol demonstrated insensitivity to overwhelming noise fields.
The quantum protocol outperformed a perfect classical strategy without entanglement.
The demonstration was performed for magnetic and electromagnetic fields over micron distances.

Conclusions:

The demonstrated quantum sensing protocol effectively overcomes noise limitations.
The technique is scalable to arbitrary distances and fields.
This work presents a promising application for quantum sensor networks.