%0 Journal Article
%T The pairing correlations in the phased t－U Hubbard model
%A 刘自信
%A 刘平
%A 刘亚
%A 文生辉
%J 中国物理 B
%D 2004
%I 
%X In this paper we have studied the phased t－U Hubbard model. Using the constrained path Monte Carlo method, we investigated the effects of phase factor on pairing correlation functions in the ground state, and we found that the long-range correlations are dependent on the choice of phase factor, and for some special values of phase factor there exist long-range pairing correlations only in the strong coupling region.
%K 配对相关性
%K Hubbard模式
%K 相关函数
%K 基态
%K 高温超导物理
%K 蒙特卡罗理论
%K 哈密顿相
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=4B332FBD633462334FCD22C9F03720DA&yid=D0E58B75BFD8E51C&vid=FC0714F8D2EB605D&iid=0B39A22176CE99FB&sid=F8035C8B7D8A4264&eid=FD7C952458BFB5D8&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=13