Three-dimensional squeezing of optically levitated nanospheres
Phys. Rev. A 114, 013504 – Published 6 July, 2026
DOI: https://doi.org/10.1103/38cw-9lv4
Abstract
We propose a protocol to measure three-dimensional 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 of squeezing is achievable with current technology, enabling quantum-enhanced detection of weak impulses.
