Faculties of University Bonn: Search
Now showing items 51-60 of 404
Analysis of pixel systematics and space point reconstruction with DEPFET PXD5 matrices using high energy beam test data
(2011-03-04)
To answer the current questions in particle physics vertex-detectors, the innermost sub-detector system of a multipurpose particle detector, with brilliant spatial resolution and at the same time with as little sensor ...
Towards single atom aided probing of an ultracold quantum gas
(2011-03-01)
In this thesis, the interactions in an unbalanced Rubidium (Rb)-Caesium (Cs) mixture are studied, where the Cs atoms have been used as probes to study the interspecies interactions. The Rb atoms are trapped and stored in ...
Wechselwirkung zwischen Ultraschall & Proton-Spin in wässriger Lösung
(2011-03-16)
Die Suche nach einem Einfluss von Ultraschall auf das Kernspinsystem in weicher Materie ist eine spannende Aufgabe. Nachdem in den 50er Jahren gezeigt werden konnte, dass in homogenen Flüssigkeiten die hohe Moleküldynamik ...
Bose-Einstein-Kondensation von paraxialem Licht
(2011-03-02)
Einer der faszinierenden Aspekte der Bose-Einstein-Kondensation ist, dass sie selbst in idealen, d.h. wechselwirkungsfreien, Bose-Gasen auftritt, wodurch sie sich grundlegend von allen Phasenübergängen unterscheidet, bei ...
Microscopic Theory of Random Lasing and Light Transport in Amplifying Disordered Media
(2011-03-10)
In the last decade Anderson Localization of Light and Random Lasing has attracted a variety of interest in the community of condensed matter theory. The fact that a system so inartificial as a thin layer consisting of dust ...
The Fluctuating Gap Model
(2011-02-10)
The quasi-one-dimensional systems exhibit some unusual phenomenon, such as the Peierls instability, the pseudogap phenomena and the absence of a Fermi-Dirac distribution function line shape in the photoemission spectroscopy. ...
Measurement of beam asymmetries in the reaction γp→pπ0η with the Crystal Barrel/TAPS experiment at ELSA
(2011-01-06)
The photoproduction of mesons off the nucleon provides an excellent tool to gain further insight into the structure of baryons and their excitation spectrum. A large number of final states yielding various resonance ...
Differential Cross Section Distributions and Polarization Observables in the Reaction p⃗p →pK0Σ+ at p⃗p = 2.95 GeV/c
(2012-12-05)
The reaction p⃗p → pK0S+ was studied with the upgraded COSY-TOF detector. A polarized proton beam with momentum 2.95 CeV/c of the Cooler Synchrotron at Forschungzentrum Jülich was focused on a liquid ...
Bestimmung von Polarisationsobservablen in der π0 und ω Photoproduktion am Proton mit dem CBELSA/TAPS-Experiment
(2012-11-23)
Ziel des Crystal-Barrel/TAPS-Experimentes am Elektronenbeschleuniger ELSA in Bonn ist die Untersuchung der Nukleon-Resonanzstruktur durch Photoproduktion von Mesonen. Zu diesem Zweck ist die Messung von Polarisationsobservablen ...
Single optical microfibre-based modal interferometer
(2012-11-23)
In this thesis, I report on the experimental investigation and the computer simulation of optical microfibre-based modal interferometers. An optical microfibre (OMF) can be produced from a commercial single-mode optical ...