The Quantum Exchange website will be unavailable Friday evening through Saturday afternoon as electrical work occurs in the American Center of Physics server room. Down time will begin at 6PM Eastern Time on Friday. Service is expected to resume by 6PM on Saturday, July 30.
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 2016 %N 29 July 2016 %8 May 9, 2005 %9 text/html %U http://www.asergeev.com/rsptexp/rsptexp.htm
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