@article{articlead816acd,
title   = {Phenomenological-operator approach to dissipation in cavity quantum electrodynamics},
author = {Almeida, N. G. de and Napolitano, Reginaldo de Jesus and Moussa, Miled Hassan Youssef},
year = {2000},
doi = {10.1103/physreva.62.033815},
journal   = {Physical Review A}
}