Characterization of quantumness of non-Gaussian states under the influence of Gaussian channel

The impact of a noisy Gaussian channel on wide range non-Gaussian input states is studied in this work. nonclassical nature the states, both and output, developed by studying corresponding photon statistics quasi-probability distributions. It found that addition has more robust quantum mechanical properties as compared to subtraction case. threshold value noise parameter transition from partial negative (W P ) zero (Q) completely positive definite, at center phase space, depends not only average number thermal photons state, but also squeezing parameter. In it observed nonclassicality kth-number filtrated state could be further enhanced adding photon(s).