Radiation Generated by Charge Migration Following Ionization

Details Radiation Generated by Charge Migration Following Ionization Radiation Generated by Charge Migration Following Ionization

2010-11-23

arxiv.org/abs/1011.5150v1

Phys. Rev. Lett. 106, 053001 (2011)

Physics

Chemical Physics

5 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.106.053001

Electronic many-body effects alone can be the driving force for an ultrafast migration of a positive charge created upon ionization of molecular systems. Here we show that this purely electronic phenomenon generates a characteristic IR radiation. The situation when the initial ionic wave packet is produced by a sudden removal of an electron is also studied. It is shown that in this case a much stronger UV emission is generated. This emission appears as an ultrafast response of the remaining electrons to the perturbation caused by the sudden ionization and as such is a universal phenomenon to be expected in every multielectron system.

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