Emergence of Classical Orbits in Few-Cycle Above-Threshold Ionization of Atomic 
Hydrogen

Bauer, Dieter

doi:10.1103/PhysRevLett.94.113001

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Emergence of Classical Orbits in Few-Cycle Above-Threshold Ionization of Atomic Hydrogen

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Bauer, Dieter
Division Prof. Dr. Christoph H. Keitel, MPI for Nuclear Physics, Max Planck Society;

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Citation

Bauer, D. (2005). Emergence of Classical Orbits in Few-Cycle Above-Threshold Ionization of Atomic Hydrogen. Physical Review Letters, 94(11): 113001, pp. 1-4. doi:10.1103/PhysRevLett.94.113001.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-8944-9

Abstract

The time-dependent Schrödinger equation for atomic hydrogen in few-cycle laser pulses is solved numerically. Introducing a positive definite quantum distribution function in energy-position space, a straightforward comparison of the numerical ab initio results with classical orbit theory is facilitated. Integration over position space yields directly the photoelectron spectra so that the various pathways contributing to a certain energy in the photoelectron spectra can be established in an unprecedented direct and transparent way.