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2006 J. Phys. B: At. Mol. Opt. Phys. 39 1731-1742 doi: 10.1088/0953-4075/39/7/015
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Abstract. 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 et al (2005 J. Phys. B: At. Mol. Opt. Phys. 38 L35).
Print publication: Issue 7 (14 April 2006) |
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