Friedberg R., Lee T. D., Zhao Wei-Qin
Chin. Phys. B 2006, 15 (9): 1909-1913
The convergent iterative procedure for solving the groundstate Schr?dinger
equation is extended to derive the excitation energy and the wavefunction of the
low-lying excited states. The method is applied to the one-dimensional quartic
potential problem. The results show that the iterative solution c...