Ultrafast Probing of Collective Electron Dynamics Driven by Dielectronic Repulsion

M. A. Lysaght, P. G. Burke, H. W. van Der Hart

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25 Citations (Scopus)
235 Downloads (Pure)


We use the time-dependent R-matrix approach to investigate an ultrashort pump-probe scheme to observe collective electron dynamics in C(+). The ionization probability of a coherent superposition of the 2s2p(2) (2)D and (2)S states shows rapid modulation due to collective dynamics of the two equivalent 2p electrons, with the modulation frequency linked to the dielectronic repulsion. The best insight into this collective dynamics is achieved by a transformation from LS symmetry to the uncoupled basis. Such dynamics may be important in high-harmonic generation using open-shell atoms and ions.
Original languageEnglish
Article number193001
Number of pages4
JournalPhysical Review Letters
Issue number19
Publication statusPublished - 15 May 2009

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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