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Type of publication: research article
Type of publication (PDB): Straipsnis konferencijos medžiagoje Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or Scopus DB conference proceedings (P1a)
Field of Science: Informatika / Informatics (N009)
Author(s): Deveikis, Algirdas
Title: Two-parameter harmonic oscillator expansion method for calculating non-relativistic ground state energy of coulomb three-particle systems with two identical particles
Is part of: [EPJ Web of Conferences, Vol. 173], Mathematical modeling and computational physics : 9th international conference, July 03-07, 2017, Dubna, Russia: proceedings / editors Gh. Adam, J. Buša, M. Hnatič and D. Podgainy. Les Ulis : EDP Sciences, 2018
Extent: p. 1-4
Date: 2018
Series/Report no.: (EPJ Web of Conferences, Vol. 173 2100-014X)
Note: Article Number: UNSP 02006
Keywords: Oscillator;Coulomb three-particle system;Cluster models
ISBN: 9782759890347
Abstract: The variational method in oscillator representation with individual parameters for each Jacobi coordinate is applied to the non-relativistic calculation of the ground state energy of a number of three-particle Coulomb systems, consisting of two identical particles and a different one. The accuracy and convergence rate of the calculations in the constructed oscillator basis are studied up to a total of 28 oscillator quanta. The results are compared with those of the traditional approach using only one such nonlinear variational parameter. The method with individual parameters for Jacobi coordinates is found to possess a number of advantages as compared to the traditional approach
Affiliation(s): Taikomosios informatikos katedra
Vytauto Didžiojo universitetas
Appears in Collections:3. Konferencijų medžiaga / Conference materials
Universiteto mokslo publikacijos / University Research Publications

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