%0 Journal Article
%T The uncertainty relations and squeezing effects for mixed states<br>混合态的不确定关系与压缩效应
%A Deng Wen_Ji
%A Liu Ping
%A Xu Xiao
%A <br>邓文基
%A 刘平
%A 徐晓
%J 物理学报
%D 2004
%I 
%X Based upon the Heisenberger's uncertainty relations for mixed states, the minimum uncertainty and squeezing effects are studies. Although all minimum uncertainty states must be pure states, the nucertainty of one dynamical variable can be squeezed in some pure states or mixed states, even if they are not minimum uncertainty states for the pair of dynamical variables. In addition, we present the general uncertainty relation of statistics, which has the similar mathmatical structure of Heisenberg's indeterminacy principle, but has no relation with quantum interfernce.
%K mixed state
%K minimum uncertainty
%K squeezing effect<br>混合态
%K 最小不确定性
%K 压缩效应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=9CC3C3141E4088F3&yid=D0E58B75BFD8E51C&vid=8E6AB9C3EBAAE921&iid=708DD6B15D2464E8&sid=E2FBEEF8E53C6C7E&eid=1D9326574290D79D&journal_id=1000-3290&journal_name=物理学报&referenced_num=5&reference_num=22