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ESQ PostDoc Giovanni Cerchiari and his colleagues describe a technique to measure the position of a dipolar scatterer

The researchers at the University of Innsbruck publish their findings in Physical Review A.

 20.12.2021

Cerchiari and colleagues 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.

For more information see:

https://journals.aps.org/pra/abstract/10.1103/PhysRevA.104.053523?ft=1