| Behaviors and high-order harmonic generation for short-range model potential in the intense laser field by using the symplectic algorithm |
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| 作者姓名： | LIU Xueshen QI Yueying HUA Wei DING Peizhu |
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| 作者单位： | Institute of Atomic and Molecular Physics,Jilin University, Changchun 130012,China,Institute of Atomic and Molecular Physics,Jilin University, Changchun 130012,China,Institute of Atomic and Molecular Physics,Jilin University, Changchun 130012,China,Institute of Atomic and Molecular Physics,Jilin University, Changchun 130012,China |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展计划(973计划)，the Young Teacher Foundation of Jilin University |
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| 摘 要： | The asymptotic boundary condition to solve the time-dependent Schr dinger equation for a short-range model potential in an- intense laser field is presented. The condition is obtained by means of the asymptotic behavior of the short-rang emodel in the sufficiently large distance and Fourier transformation, and then the time-dependent Schr dinger equation is discretized into an inhomogeneous linear canonical equation. The inhomogeneous linear canonical equation is solved using the symplectic algorithm. The wavefunctions,time-calculatedevolution of the population on the bound state, and the high-orderharmonic generation verify that our numerical method is reasonable and effective.
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| 关 键 词： | asymptotic boundary condition high-order harmonic generation symplectic algorithm. |
Behaviors and high-order harmonic generation for short-range model potential in the intense laser field by using the symplectic algorithm |
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| LIU Xueshen,QI Yueying,HUA Wei,DING Peizhu.Behaviors and high-order harmonic generation for short-range model potential in the intense laser field by using the symplectic algorithm[J].Progress in Natural Science,2004,14(7):573-581. |
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| Authors: | Liu Xueshen QI Yueying HUA Wei DING Peizhu |
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| Institution: | Institute of Atomic and Molecular Physics,Jilin University, Changchun 130012,China |
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| Abstract: | The asymptotic boundary condition to solve the time-dependent Schr dinger equation for a short-range model potential in an- intense laser field is presented. The condition is obtained by means of the asymptotic behavior of the short-rang emodel in the sufficiently large distance and Fourier transformation, and then the time-dependent Schr dinger equation is discretized into an inhomogeneous linear canonical equation. The inhomogeneous linear canonical equation is solved using the symplectic algorithm. The wavefunctions,time-calculatedevolution of the population on the bound state, and the high-orderharmonic generation verify that our numerical method is reasonable and effective. |
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| Keywords: | asymptotic boundary condition high-order harmonic generation symplectic algorithm |
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