The final product channel of molecular dissociation is often governed by dynamical bchrtvior near an adiabatic potential suriace "avoided crossing". We discuss dynamical switching of the dissociation by field dressing tie avoided crossing wiih an intense. non-resonant optical field. Dissociation of
Dynamics of high molecular Rydberg states in the presence of a weak dc field
β Scribed by Eran Rabani; L.Ya. Baranov; R.D. Levine; U. Even
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 867 KB
- Volume
- 221
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
It is argued that under the conditions of current experimental interest, one role of a weak electrical dc field on the dynamics of a high Rydberg molecular electron is to stretch the time axis. The stretch factor is essentially independent of the field and provides a classical analog of the quantum mechanical 'dilution' effect. A second role of the field is to lower the threshold for ionization thereby reducing the energetic requirements for auto-ionization. It is argued that the implications of the presence of the field are quite different for lower Rydberg states. Classical trajectory computations using action-angle variables are used to validate the proposed interpretation and to probe the nature of the possible intramolecular decay channels.
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