Phys. Rev. A 60, 3134 - 3137 (1999)Calculations of the helium atom in magnetic fields with B-spline-type functions |
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Haoxue Qiao
Laboratory of Magnetic REsonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan 430071, People’s Republic of China
Baiwen Li
Chinese Center of Advanced Science and Technology (World Laboratory), P.O. Box 8730, Beijing, People’s Republic of China
Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan 430071, People’s Republic of China
Received 23 March 1999
Studies of the helium atom in uniform intermediate magnetic fields are performed with B-spline-type functions. All the matrix elements in our calculations are formulated as products of simple, independent one-dimensional numerical integrals and analytic ones. As a result, our energies obtained with the B-spline basis set agree with the best calculations to within 0.13% of a fractional error.
©1999 The American Physical Society
URL: http://link.aps.org/abstract/PRA/v60/p3134
DOI: 10.1103/PhysRevA.60.3134
PACS: 32.60.+i
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