TY  - RPRT
TI  - Quantum Langevin equations for a two-mode parametric amplifier: Noise squeezing without negative diffusion.
AU  - Sainz de los Terreros L
AU  - FJ Bermejo
PY  - 1992
DO  - 10.1103/physreva.45.1906
UR  - https://pubmed.ncbi.nlm.nih.gov/9907178/
ID  - 9907178
ER  -