The program Time_Independent_Multichannel_Radial_Problem is designed to solve multichannel radial problem in an easy and efficient way. It employs a numerical grid method introduced by T.N. Rescigno and C.W. McCurdy [1, 2] which combines the finite-element method with the discrete variable representation. Moreover it uses the exterior complex scaling method which makes possible to treat the resonance and outgoing wave function in the same way as bound states. Efficiency and accuracy of the program was demonstrated on a simple two-channel problem in [3].
The work on this program was support by
The program was written in Fortran 90/95 and compiled by Intel Fortran Compiler. To solve the eigenvalue problem it uses the LAPACK library and to solve a sparse linear system it uses the Direct Sparse Solver library from Intel. Both these libraries are parts of Intel Math Kernel Library (MKL).