arXiv 2103.083222021-03physics.opticsphysics.ins-detquant-ph

Position measurement of a dipolar scatterer via self-homodyne detection

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

备注：: 11 pages, 5 figures
DOI：: 10.1103/PhysRevA.104.053523

英文摘要：

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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