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SÉMINAIRE DU LERMA
OBSERVATOIRE DE PARIS
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Jeudi 13 janvier 2005 à 14h00


77 avenue Denfert Rochereau, Paris 14



LAM-Meudon, salle 204, Observatoire de Paris





Atomic Collisions and Spectral Line Shapes: A Different Perspective via Moyal Quantum Mechanic



George TABISZ

University of Manitoba, Winnipeg, Canada



Résumé : Moyal quantum mechanics (MQM), which utilizes the Wigner transform and associated Weyl calculus, gives a complete statement of quantum theory that is set in classical phase space. The predictive power and computational usefulness of MQM in describing simple interacting atomic systems will be demonstrated via numerical calculations. A fully quantum version of the theory of the collision-broadening of spectral lines based on MQM will be described.