库仑规范下谱域电并矢格林函数的纵向和横向分解

The Longitudinal and Transverse Splitting of the Electrical Dyadic Green's Function in Spectral Domain under Coulomb Gauge

本文提出了一种推导谱城电并矢格林函数G．（K，r’）的新方法。在库仑规范下，以并矢狄拉克δ函数的纵向（无旋或片式）和横向（无散）分解为基础，导出了谱域电并矢格林函数G（K，r’）的纵向和横向分解表达式，并提供了同有关文献完全相同的G．（r，r’）的结果。

In this paper, a new method for determining the expression of Ge (K,r' ) (electricaldyadic Green's function in spectral domain ) is givern. Under Coulomb gauge, based on thelongitudinal (irrotational or lamellar ) and transverse (solenoidal ) splitting of dyadic Dirac δfunction, the expressions of the longitudinal and transverse component of Ge (K,r') are derived,and the expression of Ge (r,r' ) which agrees with the published result is presented