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arXiv · 2103.08322

Position measurement of a dipolar scatterer via self-homodyne detection

G. Cerchiari·L. Dania·D. S. Bykov·R. Blatt·T. Northup
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Abstract

We describe a technique to measure the position of a dipolar scatterer based on self-homodyne detection of the scattered light. The method can theoretically reach the Heisenberg limit, at which information gained about the position is constrained only by the back-action of the scattered light. The technique has applications in the fields of levitated optomechanics and trapped ions and is generally applicable to the position determination of confined light scatterers.

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G. Cerchiari, L. Dania, D. S. Bykov, R. Blatt, T. Northup. 2021-03-15. Position measurement of a dipolar scatterer via self-homodyne detection. https://doi.org/10.1103/physreva.104.053523

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