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Cold atoms in a variety of optical lattice potentials
Umeå University, Faculty of Science and Technology, Physics. Experimentell fysik. (Cold matter)
2006 (English)Licentiate thesis, monograph (Other academic)
Abstract [en]

In this thesis, both experimental achievements and theoretical preparatory investigations

for future experiments are introduced. The experiments presented

are performed with the set-up used for laser cooling and trapping of rubidium

atoms, and the theoretical examinations are adopted for intended experiments

on Bose-Einstein Condensates.

A procedure for alignment of optical lattices with arbitrary geometry is

presented, with a accompanying description of the experimental apparatus in

general. The application of these lattices will be central in future measurements

on cold atoms and Bose-Einstein Condensates. Using optical lattice structures,

other than simple cubic, opens doors to investigations of diffusion, localization,

and various quantum phenomena in novel periodic and quasi-periodic structures.

The crossover from three-dimensional, to two- and one-dimensional systems

has been investigated with theoretical simulations. The feasibility of a trial experiment

is demonstrated for an array of parallel one-dimensional systems, so

called Luttinger liquids. The experimental signatures for a two-dimensional superfluid

and insulated one-dimensional systems are predicted, and will motivate

further experimental studies in our laboratory, as well as an in others.

Place, publisher, year, edition, pages
2006. , 61 p.
URN: urn:nbn:se:umu:diva-18182OAI: diva2:157855
Available from: 2007-11-28 Created: 2007-11-28Bibliographically approved

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