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Precision measurement

Sensing past the quantum limit

Quantum physics ultimately constrains how well sensors of position, speed and acceleration can perform. A hybrid quantum system that avoids these constraints could give rise to improved sensor technologies. See Letter p.191

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Figure 1: Quantum back-action noise avoided.


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Correspondence to Warwick P. Bowen.

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Baker, C., Bowen, W. Sensing past the quantum limit. Nature 547, 164–165 (2017).

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