%0 Journal Article
%T VARIATIONAL STUDY ON CORRELATED-SQUEEZED GROUND STATE OF QUANTUM TUNNELING SYSTEM INTERACTING WITH TWO PHONONS<br>量子隧道系统与两声子库关联压缩基态的变分法研究
%A GAO YANG
%A ZHANG YU-MEI
%A <br>高　阳
%A 章豫梅
%J 物理学报
%D 1999
%I 
%X The variational approach is applied to the study of the ground state of quantum tunneling system interacting with two phonons by use of a correlated-squeezed transformation. We fine: 1) For the two phonons bath, the ground state energy of the phonons with correlation effect is lower than that without correlation effect; 2) The effect of correlation varies with the mode parameters: In the resonant regime of the phonons and two-state system, the correlation effect is more significant and will be strengthened together with the increase of coupling coefficient.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=DDF73E3C5C1BBA614F161FF5253ABD0E&yid=B914830F5B1D1078&vid=B6DA1AC076E37400&iid=DF92D298D3FF1E6E&sid=CEEFA682892739FB&eid=5D2AEAEFE5867538&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0