Skip to Main content Skip to Navigation
Theses

Étude quantique de collisions moléculaires à ultra-basse énergie : applications aux alcalins et alcalino-terreux

Abstract : In order to investigate the collisional processes which occur during the formation of molecular Bose-Einstein condensates, a time-independent quantum mechanical formalism, based on hyperspherical coordinates, has been applied to the study of atom-diatom dynamics at ultra-low energies. We present theoretical results for three alkali systems, each composed of lithium, sodium or potassium atoms, and for an alkaline-earth system composed of calcium atoms. We also study dynamics at large and positive atom-atom scattering length. Evidence for the suppression of inelastic processes in a fermionic system is given, as well as a linear relation between the atom-diatom scattering length and the atom-atom scattering length.
Complete list of metadatas

Cited literature [213 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00204105
Contributor : Goulven Quéméner <>
Submitted on : Saturday, January 12, 2008 - 12:46:48 AM
Last modification on : Wednesday, December 11, 2019 - 9:46:06 AM
Long-term archiving on: : Tuesday, April 13, 2010 - 5:08:47 PM

Identifiers

  • HAL Id : tel-00204105, version 1

Citation

Goulven Quéméner. Étude quantique de collisions moléculaires à ultra-basse énergie : applications aux alcalins et alcalino-terreux. Physique Atomique [physics.atom-ph]. Université Rennes 1, 2006. Français. ⟨tel-00204105⟩

Share

Metrics

Record views

540

Files downloads

709