Abstract
Excitation of a coherent electronic wave packet, a linear combination of several electronic stationary states, is discussed with a computational example, the A and B low lying excited states of LiH. Such linear combination results in the electron executing a rotation-like motion in the xz plane with a period of 4 fs. The excitation needs to be shorter than this purely electronic reorganization time and yet the mean energy of the photon should be relatively low so that the A and B states are coherently accessed. These two requirements limit the wave form of the few cycle pump pulse.
Original language | English |
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Pages (from-to) | 342-347 |
Number of pages | 6 |
Journal | Chemical Physics |
Volume | 338 |
Issue number | 2-3 |
DOIs | |
State | Published - 25 Sep 2007 |
Keywords
- Coherent electronic states
- Electron transport
- Femtochemistry
- Laser chemistry
- Quantum chemistry
- Steering electron dynamics