NONIDEAL LASERS, NONCLASSICAL LIGHT, AND DEFORMED PHOTON STATES

We show that both super-Poissonian and sub-Poissonian photon statistic s may be modeled by the use of the recently introduced M-type q-deform ed coherent states, while P-type q-deformed coherent states exhibit no nclassical sub-Poissonian photon statistics. Applications to the chara cterization of the photon statistics of laser outputs reasonably close to threshold, single-atom resonance fluorescence the micromaser field , and absorption by two-level atoms are considered.