CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 1996, Vol. 13 ›› Issue (2): 153-158.

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ON RESEARCHING OF THE INTEGRALS J(n,X) WITH SERIO USLY OSCILLATORY WAVEFUNCTIONS IN ATOMIC PHYSICS(Ⅱ)

Chen Guoxin, Fang Quanyu, Shen Zhijun   

  1. Institute of Applied Physics and Computational Mathematics Laboratory of Computational Physics Beijing 100088
  • Received:1994-10-05 Revised:1995-09-30 Online:1996-06-25 Published:1996-06-25

Abstract: Following the preceding paper(Ref.[I]),an improved method is presented for calculating the integrals in electron-atom colllisions by transforming the integration contours into complex plane.This method can calculate the integrals accurately not only for cases like Ref[I],but also for the case of"nearly degenerate"which cannot be calculated by methods given in Ref[I].The caleulational accuracies have been compared and checked to be very high.

Key words: complex plane, integrals, oscillatory wavefuncrions

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