Small atoms and molecules

Abstract

This chapter contains examples for the application of the method to atomic and molecular systems. The interaction between the charged particles is the Coulomb force. The long-range character of this force makes the solution of the few-body problems difficult, especially in the case of scattering. We restrict our attention to bound states, where many different methods have been elaborated in the past decades. These calculations provide an excellent possibility to test the efficiency of our method. Relativistic effects in atoms are within the reach of experimental precision of today, which calls for very accurate theoretical calculations.