Approximation of multi-centre integrals arising in proton-hydrogen charge exchange calculations
D G M Anderson; M J Antal; D G M Anderson; Div. of Engng. & Appl. Phys., Harvard Univ., Cambridge, MA, USA; M J Antal; Div. of Engng. & Appl. Phys., Harvard Univ., Cambridge, MA, USA
Журнал:
Journal of Physics B: Atomic and Molecular Physics
Дата:
1975-06-21
Аннотация:
A lg-magnitude phase representation is used to effect the efficient approximation of multi-centre integrals through polynomial interpolation. When the multi-centre integrals are evaluated by numerical quadrature, computation costs can be reduced by an order of magnitude or more.
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