Nonclassical Intensity Correlations In Cavity QED

摘要

We consider two systems in the weak driving field limit. The first is an optical parametric oscillator, the transmitted field of which is highly bunched. We discuss a conditioned measurement of the second order intensity correlation function g~((2)) (τ) that yields antibunching. The second system we consider is a single two level atom inside a weakly driven cavity. Here we consider cross correlations between the transmitted and fluorescent fields. A strong asymmetry in delay time has been noted by Denisov et. al. (Phys. Rev. Lett. 88 , 243601 (2002)), here we find strong violations of a classical inequality for the cross correlation.