Symbolic moments and cumulants of the photon-number distribution of Gaussian states.
If you find this work useful please cite our work
Y. Cardin and N. Quesada, "Photon-number moments and cumulants of Gaussian states."
If you are doing numerical work related to photon-number cumulants or moments of Gaussian states please use the highly optimized functions photon_number_cumulant
and photon_number_moment
from The Walrus.