@misc{indiciae5b9bc9cab712, title = {Interference of two photons in parametric down conversion.}, author = {R Ghosh and CK Hong and ZY Ou and L Mandel}, year = {1986}, doi = {10.1103/physreva.34.3962}, url = {https://pubmed.ncbi.nlm.nih.gov/9897741/}, note = {Source identifier: 9897741} }