Recent Submissions
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Dynamics of active condensation
(2025-06-12)Active matter represents a unique class of out-of-equilibrium systems, that are ubiquitous in our everyday life. Active particles convert energy into mechanical motion and this leads to collective self-organization into ... -
Nuclear Resonances in X-ray Waveguides
(2025-06-12)Hard X-rays generally only interact very weakly with matter, so that tissue, for example, is quite transparent to them. However, this makes the controlled manipulation of X-ray light particularly challenging. While many ... -
Nanoscale optoelectronic characterization of graphene-based heterostructures
(2025-06-11)The ongoing downscaling of electronic devices requires innovative approaches to probe and manipulate electronic behavior at the nanoscale. Two-dimensional (2D) materials offer a remarkable opportunity to directly explore ... -
Structure and Evolution of Visual Cortical Representations
(2025-05-28)Fully understanding the functions and mechanisms of the complex machinery that is our brain requires advanced statistical data analysis and theoretical modelling. In this thesis, I develop and apply statistical tools and ... -
Measurement of top quark pair production in association with charm quarks at √s = 13 TeV with the ATLAS detector
(2025-05-28)The Large Hadron Collider at CERN has produced a uniquely large set of proton-proton collision data at never-before-seen energies since the beginning of its operation in 2010. Using data collected by the ATLAS detector ... -
Connecting the Dots: Dust Particle Tracking at Comet 67P/Churyumov-Gerasimenko
(2025-05-21)Comets and their characteristic plasma and dust tails have been intriguing people for millennia. Early theories about their nature were for example already developed by the ancient Chinese and Greek, but it was not until ... -
Operando and Ultrafast Electron Microscopy of Structural Phase Transformations
(2025-05-05)Structural phase transformations promise tailored functionality in future technological devices that complement already established applications. In leveraging the associated changes of macroscopic properties, reversible, ... -
Final Steps Towards Production of the ITk Pixel Detector for the ATLAS High Luminosity Upgrade
(2025-04-28)The Large Hadron Collider (LHC) upgrade to the High-Luminosity LHC (HL-LHC) will bring an unprecedentedly challenging environment to the detectors, with an instantaneous luminosity of $5\times10^{34}\,\rm cm^{-2}s^{-1}$, ... -
Small-scale dynamics and large-scale stability of the outer solar atmosphere
(2025-04-14)The Sun has long been utilized as an observatory for gaining a better understanding of high-energy plasma physics. With the advent of the space age and the continual improvement of Sun-observing instruments, physicists ... -
Observation of four top quarks production and EFT interpretations in the multi-lepton final state with the ATLAS Experiment
(2025-03-27)The Standard Model has been remarkably successful in describing fundamental particles and their interactions. However its incompleteness makes the search for physics beyond the Standard Model one of the most important ... -
Stability and evolution of non-equilibrium states in the iron carbon system
(2025-03-20)The engineering of metastable microstructures has opened new avenues in advanced materials development. In Fe-C-based alloys, the drastic reduction in carbon solubility during the fcc-to-bcc transformation, in combination ... -
Novel methods for the next generation of high-energy physics event generators
(2025-03-14)Monte Carlo event generators are crucial for the success of the LHC physics program and provide accurate theory predictions for various applications. As experiments become more precise and undergo upgrades, event generators ... -
Characterisation of exoplanet atmospheres with high-resolution spectroscopy
(2025-03-07)High-resolution spectroscopic observations offer a powerful approach to investigate planetary atmospheric composition and dynamics. Absorption and emission spectral lines serve as valuable diagnostics, as their strength, ... -
Probing Feebly Interacting Dark Matter
(2025-03-07)Feebly Interacting Massive Particles are elusive Dark Matter candidates produced via the freeze-in mechanism. They are a type of Dark Matter that never reaches thermal equilibrium with the Standard Model. This fact leads ... -
Messung der Wandschubspannung in Strömungen mit Stoß-Grenzschicht-Wechselwirkungen
(2025-02-24)In supersonic flight, shock-boundary layer interactions (SBLI) have a considerable influence on the performance and structural requirements of missiles and airplanes. The fundamental prediction of the acting forces and ... -
The generation and dynamic control of neural activity sequences
(2025-02-24)Our behavior and cognition is flexible and dynamic. With ease, we can switch between different thoughts, memories, and movements. We are able to dynamically adapt individual behaviors, like the speed and path our arm takes ... -
Development of in-situ transmission electron microscopy techniques for electrochemistry
(2025-02-18)In this doctoral thesis, two newly developed in-situ transmission electron microscopy (TEM) methods are introduced, and their applications are demonstrated. The first one allows the insitu characterization and analysis ... -
Superstructures and heat transport in large-scale convection systems in large-scale convection systems
(2025-02-17)This thesis conducts a comprehensive investigation of Rayleigh-Bénard convection experimental and numerically in a rectangular cell, characterized by an aspect ratio of 5, exploring a wide range of Rayleigh numbers ($\Ra$) ... -
Sensory processing and learning in spiking neural networks
(2025-02-12)Organisms are capable of navigating an extremely complex environment with the help of their senses. To do this, they exploit that high dimensional sensory inputs can often be predicted from relatively sparse information, ... -
MINFLUX nanoscopy deep in (living) brain tissue
(2025-02-06)Optical fluorescence microscopy offers intrinsic advantages that enable imaging in tissue, such as non-invasiveness and specificity of the fluorescence signal. However, the resolution and thus the information content ...