Fakultäten der Universität Bonn: Suche
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Various Aspects of Astroparticle Physics and the Implications for Dark Matter Searches
(2020-05-04)
Cosmic rays offer an opportunity to search for dark matter, if the latter decays or annihilates into standard model particles. In the first part of this work, we address an excess that was claimed to be seen in the cosmic ...
Black Hole Microstate Counting in Four-Dimensional N = 4 String Compactifications
(2022-01-19)
This thesis presents research on the spectrum of supersymmetric Bogomol'nyi-Prasad-Sommerfield (BPS) states in a specific superstring compactification with N=4-extended supersymmetry in four dimensions, known as the ......
Quantum Magnetism in the Two-Dimensional Fermi-Hubbard Model and Beyond
(2022-04-06)
Ultracold quantum gases in optical lattices serve as an analogue quantum simulator to investigate the physics of strongly correlated materials. With our quantum gas setup we investigate fermionic potassium atoms in a single ......
Arterial-Spin-Labeling-Sequenzentwicklung zur Optimierung der 3T- & 7T-Perfusionsbildgebung und zur Permeabilitätsmodellierung
(2022-04-04)
Arterial spin labeling sequence development for optimization of 3T & 7T perfusion imaging and for permeability modeling
Pseudo-continuous arterial spin labeling (pCASL) is a magnetic resonance technique ...
Pseudo-continuous arterial spin labeling (pCASL) is a magnetic resonance technique ...
Optical spectroscopy and applications of atomically precise graphene nanoribbons: from light emission to photodetection
(2020-11-16)
Atomically precise graphene nanoribbons (GNRs) are narrow stripes of graphene with a width of a few atoms and a well-defined edge structure. On-surface synthesis of GNRs from molecular precursors enables atomic precision ...
Analyse der intranukleären Dynamik und des Exports der ribosomalen 60S-Untereinheit
(2021-09-13)
Die Proteinbiosynthese wird von Ribosomen - großen molekularen Maschinen - durchgeführt, die aus zahlreichen verschiedenen Proteinen und einem ribosomalen RNA-Rückgrat bestehen. Die Biogenese der ribosomalen Untereinheiten ...
Photon Based Electron Beam Analysis at ELSA Utilizing Synchrotron Radiation and Compton Scattering
(2020-11-17)
Within the collaborative research center SFB/TRR 16 "subnuclear structure of matter" the beam diagnostic capabilities of the ELSA storage ring at the Physics Institute of Bonn University have been extended by a synchrotron ...
Novel Methods for Molecular and Ionic Liquids: From Fundamentals to Applications as Electrolytes
(2021-09-13)
The trend towards sustainable technologies and processes requires the development of suitable solvents and electrolytes. In this regard, next to traditional molecular solvents, ionic liquids (ILs) are regarded as promising ...
Taming Hadronic Effects at the Precision Frontier: From the Muon Anomaly to Rare Decays
(2021-02-01)
The strong interaction, one of the indispensable pillars of the Standard Model of particle physics, poses challenges at low energies because of the phase transition and the confinement nature of its underlying theory, ...
Dispersion-theoretical analysis of ππ and πη rescattering effects in strong three-body decays
(2021-10-08)
Employing dispersion theory to analyse hadronic three-body decays is a classic subject. Based on the fundamental physical principles of analyticity and unitarity, dispersion relations exploit basic theorems of complex ......