Neutral-Ionic State Correlations in Strong-Field Molecular Ionization

Marija Kotur, Congyi Zhou, Spiridoula Matsika, Serguei Patchkovskii, Michael Spanner, Thomas C. Weinacht
2012 Physical Review Letters  
We study correlations between neutral and ionic states in strong-field molecular ionization. We compare predictions based on Dyson orbital norms and quasi-static semiclassical tunneling theories (Keldysh and MO-ADK) with more detailed calculations of strong-field ionization which take into account i) the Coulomb interaction between the outgoing continuum electron wave packet and the remaining bound electrons and ii) electron-core interactions that cause distortions of the electronic continuum
more » ... ctronic continuum states during the ionization event. Our results highlight the prominence of electronic rearrangement effects in strong-field ionization with intense ultrafast laser pulses, where the outgoing continuum electron can cause electronic transitions in the parent ion. Calculations and measurements for excited uracil molecules reveal the breakdown of Keldysh-weighted Dyson norm predictions for ionization to different states of the molecular cation in the strong-field regime. PACS numbers:
doi:10.1103/physrevlett.109.203007 pmid:23215486 fatcat:yhcp6oouxncs3lv7tdi7txqzza