Quantum-nondemolition measurement of the number of photons in a microcavity
Yu. P. Malakyan, David Petrosyan · Journal of Experimental and Theoretical Physics Letters · 1997
A new scheme for quantum-nondemolition measurement of the number and statistics of photons in a microwave cavity on the basis of interferometry of strongly-controlled V atoms which interact by a dispersion interaction with a cavity mode at a different transition is proposed.