A New Approach to Solve the Low-lying States of the Schroedinger Equation
arXiv:quant-ph/0501054 · doi:10.1007/s10955-005-5476-9
Abstract
We review a new iterative procedure to solve the low-lying states of the Schroedinger equation, done in collaboration with Richard Friedberg. For the groundstate energy, the order iterative energy is bounded by a finite limit, independent of ; thereby it avoids some of the inherent difficulties faced by the usual perturbative series expansions. For a fairly large class of problems, this new procedure can be proved to give convergent iterative solutions. These convergent solutions include the long standing difficult problem of a quartic potential with either symmetric or asymmetric minima.
54 pages, 3 figures given separately