peut-elle donner naissance à des oscillations de relaxation) n'a été que partiellement étudiée Une étude théorique du couplage de l'énergie, associée à une description précise de la dynamique des espèces chargées en présence du champ magnétique ,
apparu une difficulté intrinsèque à la description des plasmas électronégatifs. La description des ions négatifs (sont-ils en équilibre de Boltzmann ?, si oui avec quelle température effective ?), plus de quarante ans après des travaux pionners (Boyd & Thompson, 1959), n'est toujours pas résolue clairement, Des travaux théoriques, de simulation numérique et expérimentaux précis sont nécessaires pour conclure définitivement cette question ,
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