Many-electron dynamics triggered by massively parallel ionization

Details Many-electron dynamics triggered by massively parallel ionization Many-electron dynamics triggered by massively parallel ionization

2011-11-29

arxiv.org/abs/1111.6888v1

Phys. Rev. Lett. 108, 175003 (2012)

Physics

Atomic and Molecular Clusters

4 pages, 5 figures

Scientific paper

10.1103/PhysRevLett.108.175003

Massively parallel ionization of many atoms in a cluster or bio-molecule is identified as new phenomenon of light-matter interaction which becomes feasible through short and intense FEL pulses. Almost simultaneously emitted from the illuminated target the photo-electrons can have such a high density that they interact substantially even after photo-ionization. This interaction results in a characteristic electron spectrum which can be interpreted as convolution of a mean-field electron dynamics and binary electron-electron collisions. We demonstrate that this universal spectrum can be obtained analytically by summing synthetic two-body Coulomb collision events. Moreover, we propose an experiment with hydrogen clusters to observe massively parallel ionization.

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