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International Journal of SpectroscopyVolume 2010 2010, Article ID 812471, 12 pages

Review Article

Department of Optics and Spectroscopy, St. Petersburg University, St. Petersburg 198904, Russia

Laboratoire pour l-Utilisation des Lasers Intenses LULI, UMR 7605, CNRS-CEA-Ecole Polytechnique-Université Paris 6, UPMC case 128, 4 Place Jussieu, 75252 Paris Cedex 05, France

Departamento de Ingeniería Energética, E.T.S. Ingenieros Industriales, UNED, C- Juan del Rosal 12, 28040 Madrid, Spain

Received 28 April 2009; Accepted 23 June 2009

Academic Editor: Roland Stamm

Copyright © 2010 A. Devdariani et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The interaction between quasimolecular states produces not only nonadiabatic transitions but also some exotic features in the wings of the spectral profiles emitted by the ions in collision. Although thisconcept has been fruitfully used for neutral species, some new highlighted experimental data onquasimolecular optical transitions in hot dense plasma have renewed the interest to the concept inthe recent years. The present review deals with highly charged quasimolecules and it is dedicated specifically toquasimolecules formed by two bare nuclei and one bound electron. The reason for this choice is that,for such quasimolecules, the energy terms and the dipole moments of the optical transitions can beobtained straightforwardly in nonrelativistic case without any approximation that are typical forneutrals. Although the results obtained in the frame of the approach developed here are directlyapplicable to the case of single collisions or to low-density plasmas, they form a reasonable initialapproximation for the problem of optical profiles in hot dense plasmas and can be regarded as a safeframework for qualitative discussions of profiles in those environments.





Autor: A. Devdariani, E. Dalimier, and P. Sauvan

Fuente: https://www.hindawi.com/



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