Comment on: Uncommonly accurate energies for the general quartic oscillator, Int. J. Quantum Chem., e26554 (2020), by P.Okun and K.Burke

It is shown that for the one-dimensional quantum quartic anharmonic oscillator the numerical results obtained by Okun-Burke in Ref.2 are easily reproduced and can be significantly improved in Lagrange Mesh Method (based on non-uniform lattice).

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Bibliographic Details
Published inarXiv.org
Main Authors Turbiner, A V, del Valle, J C
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 24.02.2021
Subjects
Anharmonicity
Physics - Chemical Physics
Physics - High Energy Physics - Lattice
Physics - Quantum Physics
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Summary:It is shown that for the one-dimensional quantum quartic anharmonic oscillator the numerical results obtained by Okun-Burke in Ref.2 are easily reproduced and can be significantly improved in Lagrange Mesh Method (based on non-uniform lattice).
ISSN:2331-8422
DOI:10.48550/arxiv.2102.09246