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Atoms and molecules in intense attosecond fields: beyond the dipole approximation

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, , Citation M Førre et al 2007 J. Phys.: Conf. Ser. 88 012049 DOI 10.1088/1742-6596/88/1/012049

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1 Department of Physics and Technology, University of Bergen, N-5007 Bergen, Norway

2 Atomic Physics, Fysikum, Stockholm University, AlbaNova University Center, SE-106 91 Stockholm, Sweden

3 Lundbeck Foundation Theoretical Center for Quantum System Research, Department of Physics and Astronomy, University of Aarhus, 8000 Aarhus, Denmark

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1742-6596/88/1/012049

Abstract

The exact non-dipole minimal-coupling Hamiltonian for an atomic system interacting with an explicitly time- and space-dependent laser field is transformed into the rest frame of a classical free electron in the laser field, i.e., into the Kramers-Henneberger frame. The new form of the Hamiltonian has been used to study the non-dipole dynamics of atoms and molecules in intense XUV laser pulses. The time-dependent Schrödinger equation is solved without any simplifications.

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10.1088/1742-6596/88/1/012049