Collapse-revival Phenomenon in the Process ofk-photon Down Conversion with Superpositions of Number States
G. Drobný, Igor Jex, Masahiro Matsuoka · Journal of Modern Optics · 1992
We calculate numerically the time evolution of the mean photon number in the process of k-photon down conversion process with quantized pump. The pump mode was supposed to be initially in a superposition of number states and the down converted mode in a number state. We analysed in some detail the influence of the initial field statistics of the pump mode as well as the presence of non-vacuum number states in the down converted mode on the appearance of collapses and revivals.