FINITE-ELEMENT CALCULATIONS FOR THE 3-BODY COULOMB PROBLEM WITH 2 EQUAL MASSES

Authors
ACKERMANN J SHERTZER J
Citation
J. Ackermann et J. Shertzer, FINITE-ELEMENT CALCULATIONS FOR THE 3-BODY COULOMB PROBLEM WITH 2 EQUAL MASSES, Physical review. A, 54(1), 1996, pp. 365-371
Citations number
36
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
54
Issue
1
Year of publication
1996
Pages
365 - 371
Database
ISI
SICI code
1050-2947(1996)54:1<365:FCFT3C>2.0.ZU;2-S
Abstract
An accurate numerical finite-element method (FEM) solution of the thre e-body Coulomb problem with two equal masses is presented. The applica tion of the FEM to systems with mass ratios ranging from 1836 to 1/183 6 yields upper bounds for energy eigenvalues to a precision in the ran ge of 10(-11)-10(-9) a.u. Expectation values for different operators a re computed and discussed.