Quantum-nondemolition-measurement scheme using a Kerr medium
A. N. Chaba, Matthew J. Collett, Daniel F. Walls · Physical Review A · 1992
In this paper, we present a theoretical study of the quantum-nondemolition properties of a scheme that uses a Kerr medium in a double-ended cavity with both the signal and the probe inputs being coherent fields incident from the two sides. We find that with a suitable choice of parameters this system satisfies almost perfectly the criteria for quantum-nondemolition measurements.