Coherence Properties of Light from Optical Parametric Oscillators III
ABSTRACT :
The third part will deal with quantum dynamics as reflected in the photoemission sequence and what we can learn from fluctuations and correlation of photoemission using conditional measurements. Emission of a photon by a source signals a quantum fluctuation in progress. A measurement that is conditioned upon a photodetection allows us to follow the time evolution of the fluctuation. The measurement of the second order intensity correlation function is, in fact, a measurement of the fluctuations of light intensity following a conditioning photo-detection. The language of conditional measurements thus provides powerful conceptual tools for unraveling and understanding nonclassical features of quantum dynamics. We will illustrate this by considering conditional measurements of intensity and field quadrature fluctuations on light generated by optical parametric oscillators.