This web site provides tools to calculate and display the Rayleigh-Schrodinger perturbation expansion series for quantum mechanical problems. Mathematica and/or Fortran programs are used to compute the expansion coefficients for the state energies. These are displayed numerically and graphically. Input parameters include the unperturbed state of interest, the scale of the perturbation, the order of the calculation, and precision of the calculation. Problems include several perturbations of the harmonic oscillator and the Hellman potential.
%0 Electronic Source %A Sergeev, Alexey %D May 9, 2005 %T RSPT Expansion %V 2014 %N 20 April 2014 %8 May 9, 2005 %9 text/html %U http://www.asergeev.com/rsptexp/rsptexp.htm
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