Energy Gap for Some Hamiltonian Systems Describing Polariton Systems Obtained via Invariant Eigen-operator Method  

作　　者：FAN Hong-Yi TANG Xu-Bing 

机构地区：[1]Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China [2]Department of Physics, Shanghai Jiao Tong University, Shanghai 200030, China

出　　处：《Communications in Theoretical Physics》2006年第4X期603-606,共4页理论物理通讯（英文版）

基　　金：The project supported by National Natural Science Foundation of China under Grant No. 10475056 and the President Foundation of the Chinese Academy of Sciences.

摘　　要：Based on the invariant eigen-operator method （lEO） [Phys. Left. A 321 （2004） 75] we derive the exact energy gap for some Hamiltonians, which describe some polariton systems. The result shows that in some cases the IEO method, stemming from the Heisenberg approach, is more direct and convenient for deriving the energy-level gap formula than via the approach of solving the Schrodinger equation.

关 键 词：polariton system invariant eigen-operator energy gap 

分 类 号：O41[理学—理论物理]