Abstract
Statistical properties of intense twin beams will be investigated with the aim of reducing the number of independent spatio-spectral modes as much as possible, while keeping strong pairwise correlations between the beams. To this aim, spatial and spectral coherence of intense twin beams will be experimentally investigated under suitable conditions, like in the pump-depletion regime in which the number of modes can decrease. For intense twin beams, the generation of a coherent component on the top of the usual thermal component is theoretically predicted but not yet experimentally measured. The project will also address this problem by devising a proper measurement strategy and developing an appropriate theory for this case.