Ground and doubly excited states of two-dimensional D- centers - art. no. 205204

Using hyperspherical coordinates and assuming the quasiseparability of the hyperradius R from the angular variables Omega in the wave functions, we ob tain the low-lying adiabatic channel potentials U-mu(R) for the two-dimensi onal D- centers. In the large-R limit, these potential curves converge to t he thresholds of the energy levels of the neutral donor. The energy eigenst ates supported by these potentials an calculated. The correlation patterns in these channels and the effect of symmetry are investigated.