Tight upper and lower bounds to the eigenvalues and critical parameters of a double well
classification
🪐 quant-ph
math-phmath.MP
keywords
boundscriticaleigenvalueslowerparameterstightupperapproximation
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By means of a suitable rational approximation to the logarithmic derivative of the wavefunction we obtain tight upper and lower bounds to the eigenvalues and critical parameters of the quartic double-well potential.
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