Outputs (12669)

History-dependent domain and skyrmion formation in 2D van der Waals magnet Fe3GeTe2 (2022)
Journal Article
Birch, M., Powalla, L., Wintz, S., Hovorka, O., Litzius, K., Loudon, J., Turnbull, L., Nehruji, V., Son, K., Bubeck, C., Rauch, T., Weigand, M., Goering, E., Burghard, M., & Schütz, G. (2022). History-dependent domain and skyrmion formation in 2D van der Waals magnet Fe3GeTe2. Nature Communications, 13(1), https://doi.org/10.1038/s41467-022-30740-7

The discovery of two-dimensional magnets has initiated a new field of research, exploring both fundamental low-dimensional magnetism, and prospective spintronic applications. Recently, observations of magnetic skyrmions in the 2D ferromagnet Fe3GeTe2... Read More about History-dependent domain and skyrmion formation in 2D van der Waals magnet Fe3GeTe2.

A Fragmentation Approach to Jet Flavor (2022)
Journal Article
Caletti, S., Larkoski, A. J., Marzani, S., & Reichelt, D. (2022). A Fragmentation Approach to Jet Flavor. Journal of High Energy Physics, 2022(10), Article 158. https://doi.org/10.1007/jhep10%282022%29158

An intuitive definition of the partonic flavor of a jet in quantum chromodynamics is often only well-defined in the deep ultraviolet, where the strong force becomes a free theory and a jet consists of a single parton. However, measurements are perfor... Read More about A Fragmentation Approach to Jet Flavor.

Revisiting the role of bars in AGN fuelling with propensity score sample matching (2022)
Journal Article
Silva-Lima, L. A., Martins, L. P., Coelho, P. R., & Gadotti, D. A. (2022). Revisiting the role of bars in AGN fuelling with propensity score sample matching. Astronomy & Astrophysics, 661, Article A105. https://doi.org/10.1051/0004-6361/202142432

The high luminosity displayed by an active galactic nucleus (AGN) requires that gas be transported to the centre of the galaxy by some mechanism. Bar-driven processes are often pointed out in this context and a number of studies have addressed the ba... Read More about Revisiting the role of bars in AGN fuelling with propensity score sample matching.

Dynamic task fusion for a block-structured finite volume solver over a dynamically adaptive mesh with local time stepping (2022)
Book Chapter
Li, B., Schulz, H., Weinzierl, T., & Zhang, H. (2022). Dynamic task fusion for a block-structured finite volume solver over a dynamically adaptive mesh with local time stepping. In High Performance Computing 37th International Conference, ISC High Performance 2022, Hamburg, Germany, May 29 – June 2, 2022, Proceedings (153-173). Springer Verlag. https://doi.org/10.1007/978-3-031-07312-0_8

Load balancing of generic wave equation solvers over dynamically adaptive meshes with local time stepping is dicult, as the load changes with every time step. Task-based programming promises to mitigate the load balancing problem. We study a Finite V... Read More about Dynamic task fusion for a block-structured finite volume solver over a dynamically adaptive mesh with local time stepping.

Secluded dark matter in gauged B − L model (2022)
Journal Article
Bandyopadhyay, P., Mitra, M., Padhan, R., Roy, A., & Spannowsky, M. (2022). Secluded dark matter in gauged B − L model. Journal of High Energy Physics, 2022(5), Article 182. https://doi.org/10.1007/jhep05%282022%29182

We consider the gauged B − L model which is extended with a secluded dark sector, comprising of two dark sector particles. In this framework the lightest Z2-odd particle is the dark matter candidate, having a feeble interaction with all other SM and... Read More about Secluded dark matter in gauged B − L model.

Purcell-enhanced dipolar interactions in nanostructures (2022)
Journal Article
Skljarow, A., Kübler, H., Adams, C., Pfau, T., Löw, R., & Alaeian, H. (2022). Purcell-enhanced dipolar interactions in nanostructures. Physical Review Research, 4(2), https://doi.org/10.1103/physrevresearch.4.023073

Strong light-induced interactions between atoms are known to cause nonlinearities at a few-photon level, which are crucial for applications in quantum information processing. Compared to free space, the scattering and the light-induced dipolar intera... Read More about Purcell-enhanced dipolar interactions in nanostructures.

Roads to the Standard Model (2022)
Journal Article
Alonso, R., & West, M. (2022). Roads to the Standard Model. Physical Review D, 105(9), https://doi.org/10.1103/physrevd.105.096028

Experimental measurements point at the Standard Model (SM) as the theory of electroweak symmetry breaking, but as we close in on our characterization the question arises of what limits in theory space lead to the SM. The class of theories with this p... Read More about Roads to the Standard Model.

Axion instability supernovae (2022)
Journal Article
Sakstein, J., Croon, D., & McDermott, S. D. (2022). Axion instability supernovae. Physical Review D, 105(9), Article 095038. https://doi.org/10.1103/physrevd.105.095038

and strongly coupled. In this work, we investigate the astrophysical consequences of such a scenario for massive stars by incorporating new contributions to the equation of state into a state of the art stellar structure code. We focus on axions in t... Read More about Axion instability supernovae.

Machine learning a manifold (2022)
Journal Article
Craven, S., Croon, D., Cutting, D., & Houtz, R. (2022). Machine learning a manifold. Physical Review D, 105(9), Article 096030. https://doi.org/10.1103/physrevd.105.096030

We propose a simple method to identify a continuous Lie algebra symmetry in a dataset through regression by an artificial neural network. Our proposal takes advantage of the Oðϵ2Þ scaling of the output variable under infinitesimal symmetry transforma... Read More about Machine learning a manifold.

From Phosphorescence to Delayed Fluorescence in One Step: Tuning Photophysical Properties by Quaternisation of an sp2-Hybridised Nitrogen Atom (2022)
Journal Article
Klimash, A., Prlj, A., Yufit, D., Mallick, A., Curchod, B., McGonigal, P., Skabara, P., & Etherington, M. (2022). From Phosphorescence to Delayed Fluorescence in One Step: Tuning Photophysical Properties by Quaternisation of an sp2-Hybridised Nitrogen Atom. Journal of Materials Chemistry C Materials for optical and electronic devices, 10(25), 9484-9491. https://doi.org/10.1039/d2tc01737g

Control of the delayed emission of organic compounds is an important factor in the development of new display technology and for the emerging use of organic emitters in sensing and fluorescence microscopy. In particular, there is a need to understand... Read More about From Phosphorescence to Delayed Fluorescence in One Step: Tuning Photophysical Properties by Quaternisation of an sp2-Hybridised Nitrogen Atom.