Manifestation of instability in the quasiclassical limit of the spectrum of the quartic double well

D . J. Nader, J. R. Hernandez-Gonzalez, H. Vazquez-Sanchez +1

Within the Bohr's correspondence principle, the quantum theory should reproduce the classical world when $\hslash \to 0$. In practice, the discrete energies come close to each other b…