Univ Sao Paulo, Inst Fis Sao Carlos, POB 369, BR-13560970 Sao Carlos, SP - Brazil
 Univ Sao Paulo, Inst Fis, POB 66318, BR-05315970 Sao Paulo - Brazil
 Amer Phys Soc, 1 Res Rd, Ridge, NY 11961 - USA
Total Affiliations: 8
Physical Review A;
AUG 13 2018.
Web of Science Citations:
We measure the complete quantum state for six modes of the electromagnetic field produced by an optical parametric oscillator. The investigation involves the sidebands of the intense pump, signal, and idler fields generated by stimulated parametric down-conversion inside a triply resonant optical resonator. We develop a theoretical model to successfully interpret the experimental results. The model takes into account the coupling of the field modes to the phonon bath of the nonlinear crystal, clearly showing the roles of different physical effects in shaping the structure of the quantum correlations between the six optical modes. (AU)