Position measurement of a dipolar scatterer via self-homodyne detection
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- Published: Tuesday, 30 November 2021
The study of levitated dipolar scatterers is a growing field of physics that promises to uncover the connection between quantum mechanics and gravity and develop future devices for ultra-precise force sensing. In collaboration with the nanosphere team of the QI group, we investigated a new method based on the manipulation of spontaneous emission to measure the position and motion of these scatterers. In this work, we predict that our method, unlike other state-of-the-art techniques, can reach the Heisenberg limit of detection, in which the position measurement is only bounded by the recoil force of the scattered light.
