Representation of the three-body Coulomb Green's function in parabolic coordinates: paths of integration
arXiv:0912.2401 · doi:10.1088/1751-8113/43/38/385208
Abstract
The possibility is discussed of using straight-line paths of integration in computing the integral representation of the three-body Coulomb Green's function. In our numerical examples two different integration contours are considered. It is demonstrated that only one of these straight-line paths provides that the integral representation is valid.