%0 Journal Article
%T Variational Approach for the Bose--Hubbard Model<br>
%A YU De-Shui
%A CHEN Jing-Biao
%A <br>
%J 中国物理快报
%D 2008
%I 
%X The phase diagram of the one-dimensional Bose--Hubbard model describing interacting bosons in optical lattice is investigated with the variational approach. This method can also be generalized to the two-dimensional case.
%K 67
%K 40
%K Db
%K 32
%K 80
%K Pj
%K 03
%K 75
%K Lm<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=5A38464721753D386B4C0EBC87A6B076&yid=67289AFF6305E306&vid=C5154311167311FE&iid=94C357A881DFC066&sid=2326CE64312F50FD&eid=4505D95D28DD2BA2&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0