%0 Journal Article
%T Bonding-antibonding ground state transition in coupled quantum dots<br>耦合量子点中空穴基态反键态特性研究
%A Tang Nai-Yun
%A <br>汤乃云
%J 物理学报
%D 2013
%I 
%X The two lowest single-particle hole states in two vertically coupled quntum dots (CQDs) are investigated by using the six-band K ·P model. A bonding-antibonding ground-state transition is observed with interdot distance increasing. This result is counterintuitive, for the antibonding molecular ground state has never been observed in natural diatomic molecules. By comparing the wavafunction component of hole, we verify that the reordering of bonding and antibonding orbitals with interdot distance increasing is caused by spin-orbit interaction of holes.
%K coupled quantum dots
%K antibonding ground-state
%K six-band K·P model
%K spin-orbit interaction<br>耦合量子点
%K 反键态
%K 多带理论
%K 自旋轨道耦合
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=164B94149555464358049450C77208CE&yid=FF7AA908D58E97FA&iid=94C357A881DFC066&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=0