广义基的多重散射理论(英文)

Multiple Scattering Theory in a General Basis

提出了任意函数基表象中的多重散射理论．基于这个框架,一组新基的多重散射计算表明其收敛性比传统的球谐函数基的要好,从而可以实现更快和更节省物理内存的计算．另外,将多重散射矩阵分为传播矩阵和散射矩阵,很好地描述了散射性质和减小了多重散射计算中块矩阵的尺寸．

We present a theory to describe multiple scattering （MS） with an arbitrary basis. This framework allows us to select a set of new basis that exhibits better convergent properties than the usual spherical wave basis. Therefore, it enables us to perform faster and less memory-consuming calculations. Although the method outlined here is quite general, it gives a better description of the scattering properties and consequently reduces the size of the two block matrices involved in the MS calculation.