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Photo-ionization cross sections for the ground and the ≤5 excited states of lithium atoms are calculated in the photoelectron energy ranging from threshold to 0.5 Rydberg. The wavefunctions for both the bound and continuum states are obtained by solving the SchrSdinger equation numerically in a symplectic scheme. Our results are in excellent agreement with the recent experimental measurements and in harmony with other theoretical calculations. 相似文献
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建立了激光与原子相互作用的伪分立态模型 ,并用此模型计算了激光场中H原子的多光子电离速率和高次谐波。 相似文献
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采用辛算法数值求解非线性Schroedinger方程的周期初值问题,建立不同的相空间来分忻其动力学持性.首先比较分析了不同的相空间中立方非线性Sehroedinger方程在不同立方非线性参数下的长时间演化的动力学特性,然后讨论了相空间中立方一五次方非线性Sehroedinger方程在不同立方和五次方非线性参数下的长时间演化的动力学特性,数值结果显示,对于不同的立方非线性参数,随着五次方非线性参数的增加,动力学行为的演化路径是不一样的. 相似文献
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IntroductionTostudypotentialsandchargedensitiesofatomsinquantummechanics,itissummedupassolvingSchrdingerequationwithwavefunctionψ(r):-122 V(r)ψ(r)=Eψ(r),(1)|ψ(0)|<M,|ψ(r)||r|→∞=0(2)andthecruxofthematterisgoingtodetermineV(r).Thus,theknownThomas_Fermiequation,obtainedi… 相似文献
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