Comparison of asymptotic forms of the wave function for double ionization

We investigate and compare two asymptotic wave functions for atomic double ionization in the region where the distance between the escaping electrons is small when compared to the distance from the nucleus. The first of the forms was derived by Alt and Mukhamedzhanov and solves the three body Schrodinger equation to an order of 1/r2. The second wave function was derived by Engelns, Klar and Malcherek for use in all asymptotic regimes. These forms will be compared numerically and analytically.