%0 Journal Article
%T Theoretical studies on vibronic Jahn-Teller systems using group theory<br>在群论框架下电子三重态与声子耦合的理论研究
%A Feng Sheng-Qi
%A Fang Hai
%A Qiu Qing-Chun
%A <br>冯胜奇
%A 方海
%A 邱庆春
%J 物理学报
%D 2011
%I 
%X A general form of Hamiltonian for vibronic Jahn-Teller systems is derived on the basis of adiabatic approximation and group theory. The electronic operators and active Jahn-Teller modes appearing in a vibronic system are also discussed. Further calculations of excited states in minima are carried out using unitary transformation method and energy minimization procedure. The results of energy splitting for an electronic triplet Jahn-Teller system are analyzed and compared with particular reference to tetrahedral and its related crystal systems. It is shown that the lift of electronic degeneracy can be quantitatively described by the decomposition of irreducible representations of related group and subgroups.
%K vibronic coupling
%K Jahn-Teller distortion
%K active Jahn-Teller modes
%K vibronic Hamiltonian<br>电声耦合
%K 杨-泰勒畸变
%K 活跃的杨-泰勒声子模式
%K 电声耦合哈密顿量
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=C77B375C5A4A188FEAE507ED543E114D&yid=9377ED8094509821&vid=BFE7933E5EEA150D&iid=CA4FD0336C81A37A&sid=7F3D166C24468D0E&eid=7F3D166C24468D0E&journal_id=1000-3290&journal_name=物理学报&referenced_num=3&reference_num=27