Non-Gaussianity of multiple photon-subtracted thermal states in terms of compound-Poisson photon number distribution parameters: theory and experiment

Authors
G. V. Avosopiants, K. G. Katamadze, Yu. I. Bogdanov, B. I. Bantysh, S. P. Kulik

Laser Physics Letters, 15, 7, 075205 (2018)

Abstract
The multiphoton-subtracted thermal states are an interesting example of quantum states of light which are both classical and non-Gaussian. All the properties of such states can be described by just two parameters of compound-Poisson photon number distribution. The non-Gaussianity dependency on these parameters has been calculated numerically and analytically. The loss of non-Gaussianity during the optical damping has been also studied experimentally.