The Faculty of Mathematics and Natural Sciences: Search
Now showing items 1-10 of 39
Dynamical Studies of the Globular Cluster Systems around the Giant Elliptical Galaxies NGC4636 and NGC1399
(2011-08-02)
Dark matter studies in elliptical galaxies were long hampered by the lack of suitable dynamical tracers. The advent of 8 m-class telescopes equipped with multi-object spectrographs has made it possible to use globular ...
Influence of UV light and heat on the ferroelectric properties of lithium niobate crystals
(2011-07-04)
One of the most important non-linear-optical materials is lithium niobate, due to its ease of fabrication, robustness, transparency in the visible-to-infrared and excellent nonlinear properties. In this thesis the issue ...
Erzeugung eines ultrakalten Gases fermionischer Kaliumatome im optischen Dipolfallenpotential
(2011-05-27)
Kalte Atome können durch das induzierte elektrische Dipolmoment in Lichtfeldern gefangen werden. Liegt die Frequenz der verwendeten Lichtfelder sehr weit unterhalb aller elektronischen atomaren Resonanzen, so entsteht eine ...
Sensitivity of the ATLAS Experiment to discover the Decay H → ττ → ll + 4ν of the Standard Model Higgs Boson produced in Vector Boson Fusion
(2011-06-09)
A study of the expected sensitivity of the ATLAS experiment to discover the Standard Model Higgs boson produced via vector boson fusion (VBF) and its decay to H->tau->tau->ll +4nu is presented. The study is based on simulated ...
Holomorphic Couplings In Non-Perturbative String Compactifications
(2011-06-01)
In this thesis we present an analysis of several aspects of four-dimensional, non-perturbative N=1 compactifications of string theory. Our focus is on the study of brane dynamics and their effective physics as encoded in ...
Konzeption, Aufbau und Inbetriebnahme eines neuen Vorbeschleunigersystems an ELSA
(2011-12-07)
An der Elektronen-Stretcher-Anlage ELSA des Physikalischen Instituts der Universität Bonn werden Doppelpolarisationsexperimente zur Untersuchung der Struktur der Baryonen im Rahmen des transregionalen Sonderforschungsbereichs ...
Landau-Zener-Stückelberg Interferometrie mit ultrakalten Atomen in Fouriersynthetisierten optischen Gitterpotentialen
(2011-12-12)
In dieser Arbeit werden Experimente zur Konstruktion eines Zweistrahl-Atominterferometers beschrieben. Für die Experimente wurde ein atomares Bose-Einstein Kondensat hergestellt und mit einem variablen bichromatischen ...
Single molecule tracking with light sheet microscopy
(2011-11-11)
The work presented here concentrates on light sheet based fluorescence microscopy (LSFM) and its application to single molecule tracking.
In LSFM the sample is illuminated perpendicular to the detection axis with a ...
In LSFM the sample is illuminated perpendicular to the detection axis with a ...
Mobilität endogener mRNA im chromatinfreien Nukleoplasma der Speicheldrüsenzellkerne von Chironomus tentans
(2011-07-26)
In eukaryotischen Zellen ist fast die gesamte genetische Information in Form chromosomaler DNA im Zellkern gespeichert, während die molekulare Maschinerie zur Translation ausschließlich cytoplasmatisch lokalisiert ist. Der ...
Study of top-quark pair cross-section measurement in the dilepton channel with the ATLAS detector at the LHC
(2011-09-16)
The top quark is the heaviest of the known fundamental particles in the Standard Model (SM) with a mass of 173.3±1.1GeV. It is the sixth quark in the SM and the weak isospin partner of the bottom quark. Properties such as ......