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Imperial College Demonstrates Quantum Sensor Recovering Hidden Signals

6/20/2026

Summary

Story summary

Imperial College London researchers demonstrated a prototype quantum sensor that recovers hidden signals.
The differential method compares two long-baseline atom interferometers to cancel shared phase noise, while each alone failed when added noise far exceeded typical clock-laser levels.
Oliver Buchmueller, principal investigator of the AION collaboration, called the work an important milestone that confirmed the quantum-limit principle and will guide scaling up within AION and could benefit AICE at CERN.

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Story summary

Imperial College London researchers demonstrated a prototype quantum sensor that recovers hidden signals.
The differential method compares two long-baseline atom interferometers to cancel shared phase noise, while each alone failed when added noise far exceeded typical clock-laser levels.
Oliver Buchmueller, principal investigator of the AION collaboration, called the work an important milestone that confirmed the quantum-limit principle and will guide scaling up within AION and could benefit AICE at CERN.