Generation of a sub-Poissonian state with quantum high- and low-pass filters
Haibo Wang, Yongmin Li, Satoru Odate, Takayoshi Kobayashi · Physical Review A · 2005
We introduce a quantum component, the quantum high- and low-pass filter, and analyze its output characteristic. It is shown that a quantum bandpass filter can be achieved by using passive linear optics and projection measurements. Furthermore, we show that the sub-Poissonian state can be generated by using a cascaded quantum low-pass filter and high-pass filter.