Iterative Solutions for Low Lying Excited States of a Class of Schroedinger Equation
R. Friedberg, T. D. Lee, W. Q. Zhao
Abstract
The convergent iterative procedure for solving the groundstate Schroedinger equation is extended to derive the excitation energy and the wave function of the low-lying excited states. The method is applied to the one-dimensional quartic potential problem. The results show that the iterative solution converges rapidly when the coupling g is not too small.
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