Some Computer Programs

Abstract

In this chapter we shortly discuss a set of simple computer programs that allow, at the level of assimilating the present material, calculations that go beyond some analytical evaluations or academic questions. Even though this collection is not very high-brow, the necessary Wigner 3nj symbols are included. We give a code to evaluate the Slater integrals and the matrix elements of a δ-residual interaction. These ingredients allow for the construction of some simple secular equations. To this need we include a diagonalization code, based on the Jacobi method for diagonalizing matrices of small dimensions. We furthermore include, for the calculation of transition rates the computation of radial integrals of any power of r(r^L) weighted with the harmonic oscillator wave functions. Finally, a BCS code, using a constant pairing force is included for finding the occupation probabilities in a given number of single-particle orbitals.