Lippmann-Schwinger description of multiphoton ionization
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arXiv
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| Format: | Preprint |
| Published: |
2005
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| _version_ | 1866915824765239296 |
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| author | Ivanov, I. A. Kheifets, A. S. |
| author_facet | Ivanov, I. A. Kheifets, A. S. |
| contents | We outline a formalism and develop a computational procedure to treat the process of multiphoton ionization (MPI) of atomic targets in strong laser fields. We treat the MPI process nonperturbatively as a decay phenomenon by solving a coupled set of the integral Lippmann-Schwinger equations. As basic building blocks of the theory we use a complete set of field-free atomic states, discrete and continuous. This approach should enable us to provide both the total and differential cross-sections of MPI of atoms with one or two electrons. As an illustration, we apply the proposed procedure to a simple model of MPI from a square well potential and to the hydrogen atom. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_physics_0502016 |
| institution | arXiv |
| publishDate | 2005 |
| record_format | arxiv |
| spellingShingle | Lippmann-Schwinger description of multiphoton ionization Ivanov, I. A. Kheifets, A. S. Atomic Physics We outline a formalism and develop a computational procedure to treat the process of multiphoton ionization (MPI) of atomic targets in strong laser fields. We treat the MPI process nonperturbatively as a decay phenomenon by solving a coupled set of the integral Lippmann-Schwinger equations. As basic building blocks of the theory we use a complete set of field-free atomic states, discrete and continuous. This approach should enable us to provide both the total and differential cross-sections of MPI of atoms with one or two electrons. As an illustration, we apply the proposed procedure to a simple model of MPI from a square well potential and to the hydrogen atom. |
| title | Lippmann-Schwinger description of multiphoton ionization |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/physics/0502016 |