中国物理B ›› 1998, Vol. 7 ›› Issue (9): 670-680.doi: 10.1088/1004-423X/7/9/005

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DETERMINATION OF FLOQUET STATES AND QUASI-ENERGY BY CORRELATION FUNCTION

陈式刚1, 谢柏松2   

  1. (1)Center for Nonlinear Studies, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China; (2)Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China
  • 收稿日期:1998-01-04 修回日期:1998-04-03 出版日期:1998-09-20 发布日期:1998-09-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China under the Grant No. 19675006, the National High Technology Committee of Laser under the Grant No. 410-95.5, and partly the Science Foundation of China Academy of Engineering Physics und

DETERMINATION OF FLOQUET STATES AND QUASI-ENERGY BY CORRELATION FUNCTION

Xie Bai-song (谢柏松)a, Chen Shi-gang (陈式刚)b   

  1. a Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875, China; b Center for Nonlinear Studies, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
  • Received:1998-01-04 Revised:1998-04-03 Online:1998-09-20 Published:1998-09-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China under the Grant No. 19675006, the National High Technology Committee of Laser under the Grant No. 410-95.5, and partly the Science Foundation of China Academy of Engineering Physics und

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摘要： The Floquet spectrum generated by the use of time correlation function has been developed to extract the Floquet functions with Fourier transform method for wave function at integral multiples of optical period. The quasi-energy position and ionization width of those Floquet states have also been determined by least-squares fit method. Numerical calculation shows that the Fourier transform method is powerful and the resultant Floquet functions are in excellent agreement with that obtained by orthogonality projection method developed in our previous work.

Abstract: The Floquet spectrum generated by the use of time correlation function has been developed to extract the Floquet functions with Fourier transform method for wave function at integral multiples of optical period. The quasi-energy position and ionization width of those Floquet states have also been determined by least-squares fit method. Numerical calculation shows that the Fourier transform method is powerful and the resultant Floquet functions are in excellent agreement with that obtained by orthogonality projection method developed in our previous work.

中图分类号:  (Photoionization of atoms and ions)

  • 32.80.Fb
02.70.Rr (General statistical methods) 02.30.Nw (Fourier analysis) 02.30.Uu (Integral transforms) 02.60.Cb (Numerical simulation; solution of equations)