Institutt for fysikk
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Positronium Laser Cooling via the 13S-23P Transition with a Broadband Laser Pulse
(Journal article; Peer reviewed, 2024)We report on laser cooling of a large fraction of positronium (Ps) in free flight by strongly saturating the 13𝑆�−23𝑃� transition with a broadband, long-pulsed 243 nm alexandrite laser. The ground state Ps cloud is ... -
Chirality-Driven Orbital Angular Momentum and Circular Dichroism in CoSi
(Peer reviewed; Journal article, 2024)Chiral crystals and molecules were recently predicted to form an intriguing platform for unconventional orbital physics. Here, we report the observation of chirality-driven orbital textures in the bulk electronic structure ... -
Morphology Characterization and Refractive Index Analysis of Subsurface Ultrashort-Pulsed Laser Modifications in ZnS
(Peer reviewed; Journal article, 2024)A parameter study of ultrashort pulse laser-induced modifications in the bulk of ZnS crystals is reported. Experimental results on these modifications and their dependence on the pulse energy, writing speed, and depth are ... -
Advanced Photoemission Studies of Low-Dimensional Quantum Materials
(Doctoral theses at NTNU;2025:54, Doctoral thesis, 2025)The role of low-dimensional materials is becoming increasingly important for future quantum devices as conventional semiconductor technology is approaching its physical limit. In particular, electrons in two-dimensional ... -
Magnonic Phenomena in Low-Dimensional Magnetic Insulators: Mechanisms and Applications
(Doctoral theses at NTNU;2025:47, Doctoral thesis, 2025)The digital revolution of the recent decades has brought many blessings, but also challenges. With an ever-increasing amount of digital data that has to be stored and ever-increaseing demands regarding the processing speed, ... -
Chiral perturbation theory and Bose-Einstein condensation in QCD
(Journal article; Peer reviewed, 2025)We present recent results in three-flavor chiral perturbation theory at finite isospin μI and strangeness μS chemical potentials at zero temperature. The tree-level spectrum for the mesons and gauge bosons in the pion-condensed ... -
Resolving pore-scale concentration gradients for transverse mixing and reaction in porous media
(Journal article; Peer reviewed, 2024)Mixing-limited reactions are central to a wide range of processes in natural and engineered porous media. Recent advances have shown that concentration gradients sustained by flow at the pore-scale influence macroscopic ... -
Immiscible Two-Phase Flow in Porous Media: Effective Rheology in the Continuum Limit
(Peer reviewed; Journal article, 2024)We consider steady-state immiscible and incompressible two-phase flow in porous media. It is becoming increasingly clear that there is a flow regime where the volumetric flow rate depends on the pressure gradient as a power ... -
Insights into the mechanical stability of tetrahydrofuran hydrates from experimental, machine learning, and molecular dynamics perspectives
(Peer reviewed; Journal article, 2024)Natural gas hydrates (NGHs) hold immense potential as a future energy resource and for sustainable applications such as gas capture and storage. Due to the challenging formation conditions, however, their mechanical ... -
Non-constant geometric curvature for tailored spin-orbit coupling and chirality in superconductor-magnet heterostructures
(Peer reviewed; Journal article, 2024)We show that tailoring the geometric curvature profile of magnets can be used for bespoke design of an effective non-relativistic spin–orbit coupling, which may be used to control proximity effects if the magnet is coupled ... -
4D Neutron Imaging of Solute Transport and Fluid Flow in Sandstone Before and After Mineral Precipitation
(Journal article; Peer reviewed, 2024)In many geological systems, the porosity of rock or soil may evolve during mineral precipitation, a process that controls fluid transport properties. Here, we investigate the use of 4D neutron imaging to image flow and ... -
CIRCUS: an autonomous control system for antimatter, atomic and quantum physics experiments
(Peer reviewed; Journal article, 2024)A powerful and robust control system is a crucial, often neglected, pillar of any modern, complex physics experiment that requires the management of a multitude of different devices and their precise time synchronisation. ... -
The nasal cavity of the bearded seal: An effective and robust organ for retaining body heat and water
(Journal article; Peer reviewed, 2024)We report the effects of varying physiological and other properties on the heat and water exchange in the maxilloturbinate structure (MT) of the bearded seal (Erignathus barbatus or Eb) in realistic environments, using a ... -
Liquid crystalline structuring in dilute suspensions of high aspect ratio clay nanosheets
(Peer reviewed; Journal article, 2024)Aqueous liquid suspensions of high aspect ratio 2D clay nanosheets were investigated using small angle X-ray scattering (SAXS). The high aspect ratio of synthetic fluorohectorite clays allows for investigation of liquid ... -
Exploring the Growth Dynamics of Kagome Lattice Thin Films by Molecular Beam Epitaxy
(Doctoral theses at NTNU;2025:41, Doctoral thesis, 2025)The advancement of spintronic technologies depends on the discovery of novel materials with unique magnetic and topological properties. FeSn, a kagome lattice material with antiferromagnetic ordering, has emerged as a ... -
Dichroic cavity mode splitting and lifetimes from interactions with a ferromagnetic metal
(Peer reviewed; Journal article, 2024) -
The STRAT-PARK cohort: A personalized initiative to stratify Parkinson's disease
(Peer reviewed; Journal article, 2024)The STRAT-PARK initiative aims to provide a platform for stratifying Parkinson’s disease (PD) into biological subtypes, using a bottom-up, multidisciplinary biomarker-based and data-driven approach. PD is a heterogeneous ... -
Pilotrommet på Tungasletta
(Report, 2022) -
Electron microscopy of aluminium and aluminium-copper welds made using the hybrid metal extrusion & bonding techniques
(Doctoral theses at NTNU;2024:474, Doctoral thesis, 2024)Electrical conductors made from aluminium (Al) and copper (Cu) can offer several compelling benefits for the electrification of the transportation industry. The conductors combine copper’s high electrical conductivity, and ...