量子阱激子结合能与磁场

本文计算了GaAs/Ga_(1-x)Al_xAs复合量子阱中激子结合能变化与磁场的关系。目前理论计算在高、低磁场区分别采用二个变分波函数,并且对高磁场中     

超荧光的晶格模型与辐射速率

我们根据超荧光的晶格模型,利用双粒子Green函数计算超荧光的辐射速率,进而得出超荧光时间τ_R,这和目前人们所定义的超荧光时间相符合。     

关于超荧光持续时间的讨论

早在1971年,Bonifacio等就曾对超荧光的持续时间τ_R给出了明确的定义式。然而,这种简单的定义式,与实际值间的差异如何,至今未见其详。为了能从理论上推算出τ_R,我们在Bonicfacio与Lagiuto的思想基础上,提出超荧光的晶格模型,     

CONCISE POLARON MODEL TO THE CALCULATION OF BINDING ENERGY IN SOME STRONG-AND WEAK-COUPLING POLAR CRYSTALS

A new concise polaron model is proposed to study the ground state of polarons in some strong-and weak-coupling polar crystals. The ground state energy and binding energy of these materials are calculated numerically by iteration method. Results are in close agreement with the experimental data.     

双色超荧光理论解释的一种新途径

本文我们首先总结由KCl内O_2~-心产生双色超荧光的实验结果,接着我们借助于元激发对双色超荧光提出一种理论解释的新途径,此理论框架是基于统计量子电动力学。     

A POSSIBLE SOLITON-LIKE POLARON MODEL FOR SUPERCONDUCTORS Y1-xCaxBa2Cu3-xMxO7-δ(M=Fe, Ni)

Using 1+1 soliton-like polaron model of a deformable continuum, the critical temperature and the energy gap in high-temperature superconductors Y_1-xCa_xBa₂Cu_3-xM_xO_7-δ(M=Fe,Ni) are studied in the framework of finite temperature Green's function theory. The ratio 2Δ/k_BT_c=3.9 is obtained. Theoretical results are found in good agreement with the experimental data.     

光孤子高阶色散部分的函数级数近似

本文用函数级数法导出合高阶色散的非线性薛定谔方程的解析近似解；研究了高阶色散对光孤子传输的影响。分析与研究表明，近似解中高阶项对传输影响很小，可略去不计．     

非线性介质中电磁场的量子化

非线性光学的量子化理论的建立,则必须要解决非线性介质中电磁场的量子化问题。关于这个问题,近年来已有M·Hillery和P·D·Drummond等作出了研究。他们的理论采用Coulomb规范。然     

A POSSIBLE SOLITON-LIKE POLARON MODEL FOR SUPERCONDUCTORS Y1-xCaxBa2Cu3-xMxO7-δ(M=Fe,Ni)

Using 1+1 soliton-like polaron model of a deformable continuum, the critical temperature and the energy gap in high-temperature superconductors Y_1-xCa_xBa₂Cu_3-xM_xO_7-δ(M=Fe,Ni) are studied in the framework of finite temperature Green's function theory. The ratio 2Δ/k_BT_c=3.9 is obtained. Theoretical results are found in good agreement with the experimental data.