27 March 2026
Niels Bohr Bygningen 1
Europe/Copenhagen timezone
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Contribution List

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  1. 27/03/2026, 13:05
    Presentation

    This study investigates the main large-scale drivers of precipitation variability. Using monthly reanalysis data spanning 46 years (1979–2025), it examines the causal pathways driving precipitation over Europe and the North Atlantic during the winter season. To this end, causal inference methods are applied, with the aim of revealing temporal and spatial structures that differ from those...

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  2. 27/03/2026, 13:20
    Presentation

    The physical properties of a cell, such as stiffness and elasticity, are primarily governed by its cytoskeleton which is mainly made of three filament types. One these is intermediate filaments, which have recently gained interest because of their remarkable mechanical properties, exceptional stiffness at large deformations and elasticity on the other hand. They form a dynamic network that can...

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  3. 27/03/2026, 13:35
    Presentation

    A new deep ice-core record from the East Antarctic Plateau reaching at least 1.2 million years is now available through the Beyond EPICA Oldest Ice Core project (BEOIC). This record spans the Mid-Pleistocene Transition (MPT), when glacial-cycle pacing shifted from ~40,000 years to ~100,000 years, and therefore offers key constraints when combined water-isotope and greenhouse-gas measurements...

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  4. 27/03/2026, 13:50
    Presentation

    In studying the evolution of galaxies, we observe a clear bimodality in both their morphology and colour space, discerning two distinct populations: blue, star-forming galaxies with a younger, UV-bright stellar population, and red, early-type galaxies, whose star formation has halted---so-called quiescent galaxies. Understanding the halting of star formation (termed quenching) is therefore...

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  5. 27/03/2026, 14:05
    Presentation

    Mitochondria serve as the epicentre of energy production of the eukaryotic cell, generating most of the adenosine triphosphate (ATP) required for cellular processes. This energy conversion is carried out by the respiratory chain complexes, including the electron transport chain (ETC) and F_0 F_1-ATP synthase, which are located within specialized invagination of the inner mitochondrial membrane...

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  6. 27/03/2026, 14:45
    Presentation

    In physics, oscillations, e.g. of springs, are adiabatic processes. They conserve both energy and entropy. This can be monitored by observing the oscillating temperature. Oscillations also exist in chemistry. Such oscillations are described in the literature by reaction-diffusion networks of coupled rate equations that only contain chemical concentrations as variables. Therefore, these...

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  7. 27/03/2026, 15:00
    Presentation

    In the context of phenomenological modified gravity, Starobinsky inflation is considered one of the most successful inflationary models. However, from a fundamental physics perspective, it faces a significant naturalness challenge. Compatibility with cosmological observations requires a remarkably strong hierarchy: the $R^2$ term must be extremely large, while higher-order corrections must be...

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  8. 27/03/2026, 15:15
    Presentation

    Where do ultra-high-energy cosmic rays—the most energetic particles known in the Universe—come from? For decades, the question has remained unanswered. Ultra-high-energy neutrinos, born from cosmic-ray interaction and with energies more than 10,000 times higher than particles made in human-made accelerators—are key to solving this mystery. Yet, so far, we have detected but a single...

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  9. 27/03/2026, 15:30
    Presentation

    Traditionally, antiferromagnetism is a type of commensurate magnetic ordering, exhibiting Kramer's degenerate bands. Recently, it was discovered that symmetry could enforce a spin splitting of the bands. Such magnetic orders can be categorised into altermagnets with even parity spin splitting and odd-parity magnets, sometimes called antialtermagnets. In my thesis, I calculate the local...

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  10. 27/03/2026, 15:45
    Presentation

    Black hole spectroscopy is a vibrant field of research with significant potential to uncover new physics. Despite its importance and development over the last years, very little is known about how the different characteristic modes of black holes, called quasinormal modes, are excited, and how this relates to the physics of light rings. In this project we study the excitation of the...

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  11. 27/03/2026, 16:05

    Calculation of one-point functions in defect ABJM Theory.
    To this end I investigate modified fuzzy spherical harmonics (i.e. rectangluar matrix valued fuzzy spherical harmonics) which simultaneously form a basis for rectangular matrices. I derive and calculate their normalisations. Along with this I derive the AdS propagator in 2+1 dimensions as this is needed to facilitate the calculation...

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  12. 27/03/2026, 16:05

    By assuming that the astronomical cycles is detectable in the spectral signal of a stratigraphic sediment-core, the depth can be transformed into time. Using bayesian inversion and 'combing' through possible sedimentation rates, this timeline can be calculated along with uncertainties. AstroComb is aimed at geologists and feature many adjustable parameters, with an ultimate goal of searching...

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  13. 27/03/2026, 16:05

    In the search for life in the universe one of the most important tools are biosignatures. Biosignatures are molecules produced by biological processes. Such molecules are detectable in exoplanet atmospheres. On Earth, an example of biosignatures we would see in our atmosphere would be oxygen $(O_2)$, Methane $(CH_4)$ and lastly Dimethyl sulfide (DMS). DMS is a sulfur-containing gas produced by...

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  14. 27/03/2026, 16:05

    The ionizing spectral energy distribution (SED) of active galactic nuclei (AGN) is a fundamental, yet poorly constrained quantity that governs the photoionization of the Broad Line Region (BLR). X-ray observations of the changing-look AGN Mrk 590 by Lawther et al. (2025) have revealed a Comptonizing inner accretion flow, providing a new constraint on the SED. This thesis uses the Cloudy...

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  15. 27/03/2026, 16:05

    Quantum Dots (QDs) are nanoscale semiconductor structures that can emit single photons, making them attractive building blocks for quantum applications. When embedded in photonic disk resonators, their emission can be greatly enhanced through the Purcell effect. However, for QDs to be practically useful, their emission must be stable and tunable. These are two challenges this project aims to...

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  16. 27/03/2026, 16:05

    We report transport measurements of a two-dimensional semiconductor-superconductor hybrid Josephson-junction array with a double-layer electrostatic gate, enabling independent in situ voltage-tuned inter-island coupling and proximity-induced superconductivity. We use this voltage to drive and study superconductor-insulator (SIT) and superconductor-metal (SMT) transitions within the same...

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  17. 27/03/2026, 16:05

    The current best cosmological model, the $\Lambda$ Cold Dark Matter model, successfully explains the large scale structures of the universe. However, this model fails to explain some small scale observations. One key example of this discrepancy between theory and observations is the core-cusp problem. Theoretically, we expect steep inner density profiles for dark matter halos, while...

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  18. 27/03/2026, 16:05

    The Great Oxidation Event (GOE) occurred 2.54 billion years ago and transformed the composition of the Early Archean Earth’s atmosphere from being less than 1ppm of O2 to approximately 2% (Catling, et al. 2017). We model the processes behind the GOE by incorporating the complete photochemical network detailed in Liu et al. 2019 with additional reactions describing the process of carbon burial...

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  19. 27/03/2026, 16:05

    Ultra-high-energy cosmic neutrinos have energies millions of times greater than any particle produced
    on Earth. Traveling across the breadth of the observable Universe, they bring us unaltered information
    from the most extreme astrophysical environments. However, because these particles are scarce and
    interact with matter so rarely, detecting them requires specialized techniques. TAMBO...

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  20. 27/03/2026, 16:05

    In my thesis, I investigate how a non-relativistic limit (c to infinity) can be applied to the framework of string theory. I focus in on the holographic principle, which relates gravity and quantum field theory. The goal of my thesis is to see how the holographic principle carries over to non-relativistic string theory.

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  21. 27/03/2026, 16:05

    Biological membranes, especially organelle membranes, are highly complex structures composed of diverse proteins and lipid types that are often distributed unevenly across the membrane surface. Understanding how these molecules are arranged laterally is essential for revealing how organelles interact with their environment. Although extensive experimental data exist on global membrane...

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  22. 27/03/2026, 16:05

    This thesis studies the temporal and spacial evolution of both gaseous and solid materials in protoplanetary disks. A model for evolving gas and dust as well as water in forms of both ice and vapor is set up. The icy dust grains experience hydrodynamic transport, collisional growth as well as sublimation/condensation of water when the disk temperature allows it. The gas is likewise...

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  23. 27/03/2026, 16:05

    Adhesion G protein-coupled receptors (GPCRs) are proposed to play pivotal adhesive roles in neurons. We investigate mechanotransduction as a possible operating principle for adhesion GPCRs using an optical tweezer-based strategy at two different scales. At the cellular level, we use an optically trapped bead to apply forces directly to many ADGRL3 receptors (a prototypical adhesion GPCR) on...

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  24. 27/03/2026, 16:05

    In studying the evolution of galaxies, we observe a clear bimodality in both their morphology and colour space, discerning two distinct populations: blue, star-forming galaxies with a younger, UV-bright stellar population, and red, early-type galaxies, whose star formation has halted---so-called quiescent galaxies. Understanding the halting of star formation (termed quenching) is therefore...

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  25. Poster

    There is a crucial aspect of modern field theories that was not yet observed directly, which is the possibility of leaving behind a permanent change in the field potential after the emission of radiation, which gives rise to a so-called memory effect. In gravity, this effect represents permanent scars in the fabric of spacetime left behind by gravitational waves. Excitingly, the first...

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