Quantum--mechanical multiple--well oscillators exhibit curious complex eigenvalues that resemble resonances in models with continuum spectra. We discuss a method for the accurate calculation of their real and imaginary parts.
Accurate calculation of eigenvalues and eigenfunctions. I: Symmetric potentials
Accurate calculation of the eigenvalues of a new simple class of superpotentials in SUSY quantum mechanics
Accurate calculation of resonances for a central-field model potential
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