<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Spin Dynamics and Feshbach Resonances in Ultracold Sodium-Lithium Mixtures"^^ . "This thesis presents the investigation of the two-body scattering properties of cold atoms in\r\nsodium and lithium-sodium mixtures and their effects on the many body dynamics. Since both\r\nspecies are alkali atoms, the combined spin of both unpaired electrons can be either zero or one,\r\nproviding two different scattering channels.\r\nThe coupling of bound molecular states in these channels with the free atoms asymptote\r\ngives rise to the rich field of Feshbach resonance physics, where the interaction between the\r\nparticles can be controlled as an easily accessible experimental parameter. We have investigated\r\nthe Feshbach spectrum in the bosonic 7LiNa mixture and could confirm predictions based on\r\n6LiNa measurements, with a shift of the predicted spectrum by about 50 G. Also, the prospects\r\nof interaction tuning via Feshbach resonances were examined.\r\nThe difference of the scattering lengths of the electronic potentials also causes a coupling\r\nof atomic collisional channels, which can enable a spin exchange between the atoms. In this\r\nthesis, spin exchange processes have been studied in coherent oscillations in a thermal gas and\r\na Bose-Einstein condensate of sodium, as well as the evolution of this spinor gas into its ground\r\nstate. Preliminary studies of the heteronuclear spin exchange process in both the bosonic 7LiNa\r\nand in the fermionic-bosonic mixture 6LiNa are presented as well."^^ . "2016" . . . . . . . "Arno"^^ . "Trautmann"^^ . "Arno Trautmann"^^ . . . . . . "Spin Dynamics and Feshbach Resonances in Ultracold Sodium-Lithium Mixtures (PDF)"^^ . . . "phd_main.pdf"^^ . . . "Spin Dynamics and Feshbach Resonances in Ultracold Sodium-Lithium Mixtures (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Spin Dynamics and Feshbach Resonances in Ultracold Sodium-Lithium Mixtures (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Spin Dynamics and Feshbach Resonances in Ultracold Sodium-Lithium Mixtures (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Spin Dynamics and Feshbach Resonances in Ultracold Sodium-Lithium Mixtures (Other)"^^ . . . . . . "small.jpg"^^ . . . "Spin Dynamics and Feshbach Resonances in Ultracold Sodium-Lithium Mixtures (Other)"^^ . . . . . . "indexcodes.txt"^^ . . "HTML Summary of #21712 \n\nSpin Dynamics and Feshbach Resonances in Ultracold Sodium-Lithium Mixtures\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .