The Bethe ansatz equations are obtained from the periodic boundary conditions.The results show that this system is also completely integrable.

【摘要】： 正 The exact eigenstates of the Hamiltonian of the mixed-valence lattice model are constructed by using the Bethe ansatz.

A symmetrical ferromagnetic bilayer film is investigated under the nonperiodic boundary condition and considering anisotropic field at two surfaces,by using the rescaling interface approach.

期性边界条件和考虑表面各向异性场的情况下,应用界面重参数化方法精确解层对称铁磁薄膜中的低能自旋波本征问题。

The one dimensional continuity equations of n-on-p planar PN junction are solved at different boundary conditions. Generalized solutions of photocarrier concentration are given in this paper.

摘要对一维情况下平面PN结的连续性方程进解，给出不同边界条件下光生载流子浓度的一般形式解，并对结果进分析讨论。