Chapter 6: Correlation Functions and Spectra

A. Initial and final potentials with energy levels depicted
    V0=1/2kx2             V=k1x4-k2x2
A
B. Eigenvalues as a function of the switching parameter. Note the pairwise coalescence of eigenvalues in the double well system.
B
C. Eigenfunctions of initial harmonic potential
C
D. Eigenfunctions of final double well potential
D