%0 Journal Article
%T REDUCTION OF QUANTUM NOISE BY PHOTON CORRELATION<br>利用光子相关性降低量子噪声
%A LI YONG-QING
%A WANG YU-ZHU
%A <br>黎永清
%A 王育竹
%J 物理学报
%D 1989
%I 
%X In this paper, the quantum theory of the measurement of the intensity difference between two light beams is analysed. The quantum noise can be reduced by increasing the photon correlation between two beams. For anti-Cauchy-Schwarz light, another type of nonclassical radiation fields, this quantum noise can be reduced to a level below the classical limit. The sub-shot noise may occur in DFWM between the conjugate wave and the transmit wave.
%K 光子
%K 相关性
%K 量子
%K 噪声
%K 量子光学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=9980150F11AD8C7C96F5514CACE03A61&yid=1833A6AA51F779C1&vid=16D8618C6164A3ED&iid=38B194292C032A66&sid=DA4893B5F9885621&eid=03436AC72A659ACA&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=1