计算物理 ›› 1996, Vol. 13 ›› Issue (2): 153-158.
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陈国新, 方泉玉, 沈智军
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Chen Guoxin, Fang Quanyu, Shen Zhijun
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摘要： 在电子与原子(或离子)碰撞过程中,需要精确计算大量含剧烈振荡波涵数的积分。把计算J(n,X)的积分路径变到复平面上来研究含剧烈振荡波函数积分,不仅能计算相同波数或波数不同但相差较大的积分J(n,X),而且能计算"近简并"情形下的积分J(n,X)。
关键词: 复平面, 积分, 振荡波函数
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
中图分类号:
O562.4
陈国新, 方泉玉, 沈智军. 含剧烈振荡波函数积分J(n,X)的研究(Ⅱ)[J]. 计算物理, 1996, 13(2): 153-158.
Chen Guoxin, Fang Quanyu, Shen Zhijun. ON RESEARCHING OF THE INTEGRALS J(n,X) WITH SERIO USLY OSCILLATORY WAVEFUNCTIONS IN ATOMIC PHYSICS(Ⅱ)[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1996, 13(2): 153-158.
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