0611008 (P. Pedram et al.)

Optimized basis expansion as an extremely accurate technique for solving
time-independent Schrodinger equation    [PDF]

P. Pedram, M. Mirzaei, S. S. Gousheh

We use the optimized trigonometric finite basis method to find energy eigenvalues and eigenfunctions of the time-independent Schrodinger equation with high accuracy. We apply this method to the quartic anharmonic oscillator and the harmonic oscillator perturbed by a trigonometric anharmonic term as not exactly solvable cases and obtain the nearly exact solutions.

View original: http://arxiv.org/abs/0611008