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| Main Authors: | , |
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| Formato: | Preprint |
| Publicado em: |
2006
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| Assuntos: | |
| Acesso em linha: | https://arxiv.org/abs/physics/0601137 |
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Sumário:
- We apply the convergent close-coupling (CCC) formalism to the problem of two-photon double ionization of helium. The electron-photon interaction is treated perturbatively whereas the electron-electron interaction is included in full. The integrated two-photon double ionization cross-section is substantially below non-perturbative literature results. However, the pattern of the angular correlation in the two-electron continuum is remarkably close to the non-perturbative time-dependent close-coupling calculation of Hu {\em et al} [J. Phys. {\bf B38}, L35 (2005)]