Supported by the National Natural Science Foundation of China under Grant No 10775097.
Based on the technique of integration within an ordered product of operators we have demonstrated that singlemode mixed states' density matrices can be recast into the normally ordered Gaussian forms [Chin. Phys. Let...
This work was supported by the National Natural Science Foundation of China under Grant No. 50477001.
The modular interference characteristics of circular-core and elliptical-core two-mode fibers are investigated in theory. The intensity distribution and figure of two-lobe mode patterns are evaluated and simulated qua...