摘要
For a dissipative channel governed by the master equation of the density operator describing the photon loss,we find that the photocount distribution formula at time𝑢can be related to the initial photocount distribution by replacing the efficiency of the detector𝜊ζwith𝜊ζe^(−2kt)𝜆𝑢,as if the quantum efficiencyζ𝜊of the detector becomes𝜊ζe^(−2kt)𝜆𝑢.This law greatly simplifies the theoretical study of the photocount distribution for quantum optical fields.
作者
FAN Hong-Yi
LOU Sen-Yue
HU Li-Yun
范洪义;楼森岳;胡利云(Department of Physics,Ningbo University,Ningbo 315211;Department of Physics,Jiangxi Normal University,Nanchang 330022)
基金
Supported by the National Natural Science Foundation of China under Grant Nos 11175113 and 11264018
the Natural Science Foundation of Jiangxi Province of China(No 20132BAB212006).
