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Quantum State Preparation Representation
Nanomechanical sensor resolving impulsive forces below its zero-point fluctuations
arXiv
Authors: Martynas Skrabulis, Martin Colombano Sosa, Nicola Carlon Zambon, Andrei Militaru, Massimiliano Rossi, Martin Frimmer, Lukas Novotny
Year
2026
Paper ID
3271
Status
Preprint
Abstract Read
~2 min
Abstract Words
67
Citations
N/A
Abstract
The sensitivity of a mechanical transducer is ultimately limited by its inherent quantum fluctuations. Here, we use an optically levitated nanoparticle to measure impulsive forces smaller than the particle's zero-point momentum uncertainty. Our approach relies on reversibly squeezing the levitated particle's center-of-mass motion to coherently amplify the perturbation. We demonstrate resolving single impulsive-force kicks as small as 6.9 keV/c, a value 0.6 dB below the sensor's zero-point value.
Why This Paper Matters
- This paper contributes to the Quantum State Preparation & Representation research area in the Quantum Articles archive.
- It adds a 2026 reference point for readers tracking recent quantum research.
- The sensitivity of a mechanical transducer is ultimately limited by its inherent quantum fluctuations.
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