Introduction of the Coulomb dressed potential into atomic scattering |
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Authors: | Hu Xian-Quan Xu Jie Luo Guang and Ma Yan |
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Institution: | College of Physics and Information Technology, Chongqing Normal University, Chongqing 400047, China |
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Abstract: | The model of the Coulomb dressed potential is applied to solving the
problem of electron scattering for simplifying the calculation in the
electrostatic field and the excimer laser field. The introduction and
the application of the model are based on the electric dipole
approximation, so the contribution of the electric multipole is
neglected. In this paper, rigorous analysis and deduction are
carried out for the introduction of the dressed Coulomb potential
into the laser field. It is found that the introduction of the
dressed potential in the fractional form is feasible only when the
laser field (not including far ultraviolet field and x-ray) is a weak
field, i.e. the quiver radius of the free electron is smaller than
the atomic scale. In addition, the necessary analysis is also
conducted of the limitation of the application of the Coulomb dressed
potential. |
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Keywords: | scattering coulomb potential dressed potential quiver radius |
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