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Le problème coulombien à trois corps : états liés, résonances et intéraction avec la lumière; vers la spectroscopie de H2+.

Abstract : We present a theoretical study of the quantum three body Coulomb problem. The symmetries combined with well adapted coordinates and basis fonctions allow to write the Hamiltonian as a sparse banded matrix that is numerically diagonalised. We have computed the energy levels of the H2+, HD+ and exotic molecular ions like Μpp. We have calculated the photodissociation cross sections of H2+, extended the calculation of the two photon transition rates between bound states to the case of HD+, and determined the coulombic and radiative decay rates of the resonances of the exotic species.
We describe a doppler-free two photon spectroscopy experiment in H2+ or HD+ aiming at a new determination of the proton to electron mass ratio. The comparison between the merits of the two ions shows that HD+ spectroscopy is more favorable. The quadrupolar radiofrequency trap that confines the ions is described.
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https://tel.archives-ouvertes.fr/tel-00011439
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Submitted on : Friday, January 20, 2006 - 6:14:56 PM
Last modification on : Thursday, October 29, 2020 - 3:01:15 PM
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  • HAL Id : tel-00011439, version 1

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Kilic Senem. Le problème coulombien à trois corps : états liés, résonances et intéraction avec la lumière; vers la spectroscopie de H2+.. Physique Atomique [physics.atom-ph]. Université Pierre et Marie Curie - Paris VI, 2005. Français. ⟨tel-00011439⟩

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