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含时量子蒙特卡罗方法研究两电子原子在强激光作用下电子的动力学行为

郭福明 宋阳 陈基根 曾思良 杨玉军

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含时量子蒙特卡罗方法研究两电子原子在强激光作用下电子的动力学行为

郭福明, 宋阳, 陈基根, 曾思良, 杨玉军

The dynamic process of two-electron atom irradiated by intense laser pulse using time dependent quantum Monte Carlo method

Guo Fu-Ming, Song Yang, Chen Ji-Gen, Zeng Si-Liang, Yang Yu-Jun
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  • 通过改进含时量子蒙特卡罗方法研究了一维模型双电子原 子在强激光作用下的电子动力学过程. 与准确的数值积分求解含时薛定谔方程相比, 计算得到的波包对应的量子系综中粒子的动力学变化和含时波包演化结果定性一致, 且大幅度地提高了计算效率. 根据计算得到的经典粒子系综的动力学演化行为, 分析了原子在强激光作用下的激发、电离、重散射等非线性过程.
    We investigate the electron dynamic process of a one-dimensional two-electron atom irradiated by strong laser pulse using the improved time-dependent quantum Monte Carlo (TDQMC) scheme. By comparison with the scheme for solving the time-dependent Schrdinger equation by using the accurate numerical integration, the dynamic variation of particle in a quantum ensemble, corresponding to the calculated wave-packet, is consistent with the evolution of time-dependent wavepacket. The computation efficiency of the TDQMC is more largely enhanced than that of the time-dependent integration method. According to the dynamic evolution behaviors of the calculated classical particle ensemble, we analyze the excitation, ionization, recombination of electron and other non-linear processes in a strong laser field.
    • 基金项目: 国家自然科学基金(批准号: 10904006, 11034003); 中央高校基本科研业务费(批准号: 200903368, 200903372); 浙江省自然科学基金(批准号: Y6110578)和 中国工程物理研究院科学技术发展基金(批准号: 2011B0102026)资助的课题.
    • Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 10904006, 11034003), the Fundmental Research Fund for the Central Univeristies, China (Grant Nos. 200903368, 200903372), the Natural Science Foundation of Zhejiang Province, China (Grant No. Y6110578), and the Science and Technology Fund of China Academy of Engineering Physics (Grant No. 2011B0102026).
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    Agostini P, Fabre F, Mainfray G, Petite G, Rahman N K 1979 Phys. Rev. Lett. 42 1127

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    Shore B W, Knight P L 1987 J. Phys. B 20 413

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    Connerade I P, Keitel C H 1996 Phys. Rev. A 53 2748

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    Kulander K 1987 Phys. Rev. A 35 445

    [5]

    Chen J G, Yang Y J, Yu X P, He L J, Xu Y Y 2011 Acta Phys. Sin. 60 053206 (in Chinese) [陈基根, 杨玉军, 俞旭萍, 何龙君, 徐圆圆 2011 物理学报 60 053206]

    [6]

    Chen J G, Yang Y J, Chen Y 2011 Acta Phys. Sin. 60 033202 (in Chinese) [陈基根, 杨玉军, 陈漾 2011 物理学报 60 033202]

    [7]

    Zeng S L, Zou S Y, Yan J 2009 Chin. Phys. Lett. 26 053202

    [8]

    Zanghellini J, Kitzler M, Fabian C, Brabec T, Scrinzi A 2003 Laser Phys. 13 1064

    [9]

    Runge E, Gross E K U 1984 Phys. Rev. Lett. 52 997

    [10]

    Marques M A L, Gross E K U 2004 Rev. Phys. Chem. 55 427

    [11]

    Ho P J, Panfili R, Haan S L, Eberly J H 2005 Phys. Rev. Lett. 94 093002

    [12]

    Hao W L, Li W D, Liu J, Chen J 2011 Phys. Rev. A 83 053422

    [13]

    Christov I P 2006 Opt. Express 14 6906

    [14]

    Christov I P 2007 New J. Phys. 9 70

    [15]

    Christov I P 2007 J. Chem. Phys. 127 134110

    [16]

    Christov I P 2008 J. Chem. Phys. 129 214107

    [17]

    Christov I P 2006 Appl. Phys. B 85 503

  • [1]

    Agostini P, Fabre F, Mainfray G, Petite G, Rahman N K 1979 Phys. Rev. Lett. 42 1127

    [2]

    Shore B W, Knight P L 1987 J. Phys. B 20 413

    [3]

    Connerade I P, Keitel C H 1996 Phys. Rev. A 53 2748

    [4]

    Kulander K 1987 Phys. Rev. A 35 445

    [5]

    Chen J G, Yang Y J, Yu X P, He L J, Xu Y Y 2011 Acta Phys. Sin. 60 053206 (in Chinese) [陈基根, 杨玉军, 俞旭萍, 何龙君, 徐圆圆 2011 物理学报 60 053206]

    [6]

    Chen J G, Yang Y J, Chen Y 2011 Acta Phys. Sin. 60 033202 (in Chinese) [陈基根, 杨玉军, 陈漾 2011 物理学报 60 033202]

    [7]

    Zeng S L, Zou S Y, Yan J 2009 Chin. Phys. Lett. 26 053202

    [8]

    Zanghellini J, Kitzler M, Fabian C, Brabec T, Scrinzi A 2003 Laser Phys. 13 1064

    [9]

    Runge E, Gross E K U 1984 Phys. Rev. Lett. 52 997

    [10]

    Marques M A L, Gross E K U 2004 Rev. Phys. Chem. 55 427

    [11]

    Ho P J, Panfili R, Haan S L, Eberly J H 2005 Phys. Rev. Lett. 94 093002

    [12]

    Hao W L, Li W D, Liu J, Chen J 2011 Phys. Rev. A 83 053422

    [13]

    Christov I P 2006 Opt. Express 14 6906

    [14]

    Christov I P 2007 New J. Phys. 9 70

    [15]

    Christov I P 2007 J. Chem. Phys. 127 134110

    [16]

    Christov I P 2008 J. Chem. Phys. 129 214107

    [17]

    Christov I P 2006 Appl. Phys. B 85 503

计量
  • 文章访问数:  6303
  • PDF下载量:  927
  • 被引次数: 0
出版历程
  • 收稿日期:  2011-11-30
  • 修回日期:  2012-02-16
  • 刊出日期:  2012-08-05

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