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arXiv · 2601.22283

Three-dimensional squeezing of optically levitated nanospheres

Giacomo Marocco·David C. Moore·Daniel Carney
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Abstract

We propose a protocol to measure impulses beyond the standard quantum limit. The protocol reduces noise in all three spatial dimensions and consists of squeezing a mechanical system's state via a series of jumps in the frequency of the harmonic potential. We quantify how decoherence in a realistic system of an optically levitated, dielectric nanoparticle limits the ultimate sensitivity. We predict that $\sim$10 dB of squeezing is achievable with current technology, enabling quantum-enhanced detection of weak impulses.

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Giacomo Marocco, David C. Moore, Daniel Carney. 2026-01-29. Three-dimensional squeezing of optically levitated nanospheres. https://arxiv.org/abs/2601.22283

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