@article{214251, author = {Lu Deng and Cuiping Lu and Weiping Zhang and Chunhua Yuan}, title = {Generating correlated (2+1)-photon pairs in an active-Raman-gain medium}, year = {2009}, number = {79}, month = {2009-03-05}, publisher = {Physical Review A}, doi = {https://doi.org/10.1103/PhysRevA.79.033804}, language = {en}, }