title: Low-Dimensional Traps for Bose-Fermi Mixtures
creator: Göbel, Martin
subject: ddc-530
subject: 530 Physics
description: This thesis describes the design and realization of a novel experimental setup for the investigation of ultracold Bose-Fermi mixtures. The new setup combines a mixture experiment of 40K and 87Rb with one-dimensional trapping geometries that are accessible in the miniaturized wire traps of an atom chip. By additionally coupling the internal states of magnetically trapped atoms with radio-frequency (rf) fields, versatile state-selective and species-selective potentials can be created. One special case is the deformation of the static one-dimensional trap to a novel two-dimensional geometry in which the atoms are confined to the walls of a straight tube. An extensive numerical and experimental analysis of this trapping geometry with the aim of minimizing the variations in the trapping potential was performed. This leads to a new improved spatial arrangement for the wires that create the rf fields. The optimized wire layout was implemented in the new experimental setup and will allow the first realization of such a two-dimensional trap configuration with periodic boundary conditions. Results of experiments performed with a simplified arrangement of the rf wires allowed the observation of the two-dimensional regime with thermal atoms.
date: 2008
type: Dissertation
type: info:eu-repo/semantics/doctoralThesis
type: NonPeerReviewed
format: application/pdf
identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/8846/1/MGoebel_PhD.pdf
identifier: DOI:10.11588/heidok.00008846
identifier: urn:nbn:de:bsz:16-opus-88461
identifier:   Göbel, Martin  (2008) Low-Dimensional Traps for Bose-Fermi Mixtures.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/8846/
rights: info:eu-repo/semantics/openAccess
rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html
language: eng