Fakultät für Physik (inkl. GAUSS)
Recent Submissions
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Smartphone-Experimente als Übungsaufgaben: Entwicklung, Implementation und Evaluation im Kontext der Studieneingangsphase Physik
(2025-12-02)Against the background of efforts to design a solid, effective, yet student-friendly introductory phase of physics study programs, there is particular interest in (i) how students can be supported in their learning, ... -
Measurement of the $t\bar{t}H$ Production Cross-Section in the Non-Resonant Four Lepton Final State in $pp$ Collisions at $\sqrt{s}=13\,\text{TeV}$ with the ATLAS Detector
(2025-11-26)This thesis presents the measurements of the associated production of a top quark pair with a Standard Model Higgs boson in multi-lepton final states, focusing on the measurement of the inclusive cross-section in the $4\ell$ ... -
Stabilized Optical Scanning Tunneling Microscopy: Probing Defect-Driven Phenomena in Correlated Electron Systems
(2025-11-26)This thesis presents the development and application of a stabilized optical scanning tunneling microscopy (STM) approach that enables controlled, localized optical excitation at the atomic scale. A key advancement is the ... -
Time Reversal Breaking and Entropy Production in Non-Equilibrium Systems: Insights from Mean Back Relaxation
(2025-11-20)The distinction between equilibrium thermal fluctuations, exemplified by Brownian motion, and active non-equilibrium processes is an essential problem in various fields of non-equilibrium statistical physics and biophysics. ... -
Diagnostics of comprehensive simulations of the chromosphere
(2025-11-20)The solar chromosphere is a highly dynamic and complex region of the solar atmosphere. It plays an important role in the formation of many of the observed solar features, such as, prominences, spicules, and flares. In ... -
Capturing exciton wavefunctions by time-resolved photoemission orbital tomography
(2025-11-05)Excitons are realizations of a correlated many-body wavefunction, consisting of a Coulomb-bound electron and hole pair. They are the dominant excitations in semiconducting organic and low-dimensional quantum materials and ... -
Electron-Heralded Parametric Photon Generation
(2025-10-23)Recent research on quantum phenomena has shown great potential to enhance modern technology by increasing computation speed and enabling secure data encryption. Its underlying technological advancements rely on the efficient ... -
Advancing information theory for distributed computation - with applications to biological networks and Artificial Intelligence
(2025-10-15)Biological brains and artificial neural networks alike derive their impressive information processing abilities from the complex interplay of individual neurons. While the function of an individual neuron is comparatively ... -
$t\bar{t}H$ Production Measurement in the $H\,{\rightarrow}\,b\bar{b}$ Decay Channel with ATLAS at 13 TeV and System Tests for the Pixel Detector
(2025-10-13)The Yukawa coupling between the Higgs boson and the top quark – the heaviest elementary particle in the Standard Model of particle physics – is one of the fundamental parameters of the theory. With a value close to unity, ... -
Adhesion of Lipid Vesicles on Bio-Inspired Surfaces
(2025-10-08)Many biological transport processes rely on vesicles composed of a lipid membrane enclosing a fluid volume. Examples are the neurotransmitter release at the synapse or the transport by vesicles in and between cells. The ... -
Thermodynamics and Kinetics of Chemo-mechanical Energy Conversion
(2025-10-08)Understanding the structure-dynamics-function linkage in biomolecular systems at a mechanistic and quantitative level is a fundamental challenge in contemporary biophysics. This thesis employs molecular dynamics (MD) ... -
A Measure-Theoretic Perspective on Multivariate Information with Applications to Data Science
(2025-09-17)This dissertation establishes a measure-theoretic foundation for information theory by formulating entropy, mutual information, and related quantities on a common type of probability spaces. Using Radon–Nikodym derivatives ... -
Observation of Floquet states in graphene
(2025-09-17)Recent advances in the field of condensed-matter physics have unlocked the potential to realize and control emergent material phases that are not accessible in thermal equilibrium. One of the most promising concepts in ... -
Stellar variability of M stars in the context of exoplanet detection and characterisation
(2025-08-29)The detection and characterisation of exoplanets around M dwarfs is an important aspect in the search for low-mass planets outside our Solar System. M dwarfs are excellent targets for radial velocity (RV) detection due to ... -
Radial velocity search for extrasolar planets around late M dwarfs
(2025-08-29)The radial velocity (RV) method has revealed the presence of rocky exoplanets in the habitable zones of M dwarf stars in the Solar neighborhood. Some of the potentially most Earth-like exoplanets have been found orbiting ... -
Ultrafast exciton dynamics in moiré heterostructures
(2025-08-05)The optoelectronic properties of two-dimensional semiconductors are defined by two-particle correlated exciton states formed via the Coulomb interaction between single-particle holes and electrons. After excitation with ... -
Electrical Control and Spatial Visualization of Charge Density Waves in 1T-TaS2
(2025-07-31)Charge density waves (CDWs) are stable phases in crystalline materials, creating a peri- odic reordering of the electron density and thereby induce a distortion of the underlying atomic lattice. Such structural changes ... -
Constraining the Properties of Multiple Populations in Globular Clusters
(2025-07-31)Classically, all stars in a globular cluster are assumed to be very similar in age and chemical composition because they are thought to originate from the same giant molecular cloud. In recent years, researchers have ... -
Development and Optimization of ACTS Tracking Software for High Luminosity Collider Experiments
(2025-07-21)With the dawn of the high luminosity era at the LHC, an unprecedented amount of data will be collected and processed at the ATLAS experiment. This will result in a drastic increase of hit combinatorics during track ... -
Development and Characterization of a Pump-Probe Setup for Broadband Time-Resolved Reflectivity Measurements with Sub-10 Femtosecond Resolution
(2025-07-21)It has long been known that light as a tool can used for material modification. In order to explore the related possibilities for a wide range of materials in science and tech- nology, tremendous efforts has been made ...