Skip to main content

Research Repository

Advanced Search

Outputs (222)

Fifth forces and broken scale symmetries in the Jordan frame (2022)
Journal Article
Copeland, E. J., Millington, P., & Sevillano Muñoz, S. (2022). Fifth forces and broken scale symmetries in the Jordan frame. Journal of Cosmology and Astroparticle Physics, 2022(02), Article 016. https://doi.org/10.1088/1475-7516/2022/02/016

We study the origin of fifth forces in scalar-tensor theories of gravity in the so-called Jordan frame, where the modifications to the gravitational sector are manifest. We focus on theories of Brans-Dicke type in which an additional scalar field is... Read More about Fifth forces and broken scale symmetries in the Jordan frame.

Defect-driven antiferromagnetic domain walls in CuMnAs films (2022)
Journal Article
Reimers, S., Kriegner, D., Gomonay, O., Carbone, D., Krizek, F., Novák, V., …Edmonds, K. W. (2022). Defect-driven antiferromagnetic domain walls in CuMnAs films. Nature Communications, 13(1), Article 724. https://doi.org/10.1038/s41467-022-28311-x

Efficient manipulation of antiferromagnetic (AF) domains and domain walls has opened up new avenues of research towards ultrafast, high-density spintronic devices. AF domain structures are known to be sensitive to magnetoelastic effects, but the micr... Read More about Defect-driven antiferromagnetic domain walls in CuMnAs films.

Fluid dynamics and cell-bound Psl polysaccharide allows microplastic capture, aggregation and subsequent sedimentation by Pseudomonas aeruginosa in water (2022)
Journal Article
Romero, M., Carabelli, A., Swift, M., & Smith, M. (2022). Fluid dynamics and cell-bound Psl polysaccharide allows microplastic capture, aggregation and subsequent sedimentation by Pseudomonas aeruginosa in water. Environmental Microbiology, 24(3), 1560-1572. https://doi.org/10.1111/1462-2920.15916

Decades after incorporating plastics into consumer markets, research shows that these polymers have spread worldwide. Fragmentation of large debris leads to smaller particles, collectively called microplastics (MPs), which have become ubiquitous in a... Read More about Fluid dynamics and cell-bound Psl polysaccharide allows microplastic capture, aggregation and subsequent sedimentation by Pseudomonas aeruginosa in water.

Search for magnetic monopoles produced via the Schwinger mechanism (2022)
Journal Article
Acharya, B., Alexandre, J., Benes, P., Bergmann, B., Bertolucci, S., Bevan, A., …Vives, O. (2022). Search for magnetic monopoles produced via the Schwinger mechanism. Nature, 602(7895), 63-67. https://doi.org/10.1038/s41586-021-04298-1

Electrically charged particles can be created by the decay of strong enough electric fields, a phenomenon known as the Schwinger mechanism1. By electromagnetic duality, a sufficiently strong magnetic field would similarly produce magnetic monopoles,... Read More about Search for magnetic monopoles produced via the Schwinger mechanism.

Quadratic curvature corrections to stringy effective actions and the absence of de Sitter vacua (2022)
Journal Article
Cunillera, F., Emond, W. T., Lehébel, A., & Padilla, A. (2022). Quadratic curvature corrections to stringy effective actions and the absence of de Sitter vacua. Journal of High Energy Physics, 2022(2), Article 12. https://doi.org/10.1007/jhep02%282022%29012

We investigate the combined effect of fluxes and higher-order curvature corrections, in the form of the Gauss-Bonnet term, on the existence of de Sitter vacua in a heterotic string inspired framework, compactified on spheres and tori. We first gain s... Read More about Quadratic curvature corrections to stringy effective actions and the absence of de Sitter vacua.

Identifying correlation clusters in many-body localized systems (2022)
Journal Article
Hémery, K., Pollmann, F., & Smith, A. (2022). Identifying correlation clusters in many-body localized systems. Physical Review B, 105(6), Article 064202. https://doi.org/10.1103/physrevb.105.064202

We introduce techniques for analyzing the structure of quantum states of many-body localized (MBL) spin chains by identifying correlation clusters from pairwise correlations. These techniques proceed by interpreting pairwise correlations in the state... Read More about Identifying correlation clusters in many-body localized systems.

Effect of bismuth surfactant on the structural, morphological and optical properties of self-assembled InGaAs quantum dots grown by Molecular Beam Epitaxy on GaAs (001) substrates (2022)
Journal Article
Alghamdi, H., Alhassni, A., Alhassan, S., Almunyif, A., Klekovkin, A. V., Trunkin, I. N., Vasiliev, A. L., Galeti, H. V., Galvão Gobato, Y. G., Kazakov, I. P., & Henini, M. (2022). Effect of bismuth surfactant on the structural, morphological and optical properties of self-assembled InGaAs quantum dots grown by Molecular Beam Epitaxy on GaAs (001) substrates. Journal of Alloys and Compounds, 905, Article 164015. https://doi.org/10.1016/j.jallcom.2022.164015

In this work, we have investigated the effect of Bi surfactant on structural, morphological and optical properties of 5 monolayers self-assembled InGaAs quantum dots (QDs) grown on GaAs (001) substrates at various growth temperatures (435, 467 and 49... Read More about Effect of bismuth surfactant on the structural, morphological and optical properties of self-assembled InGaAs quantum dots grown by Molecular Beam Epitaxy on GaAs (001) substrates.

The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies (2022)
Journal Article
Contreras-Santos, A., Knebe, A., Pearce, F., Haggar, R., Gray, M., Cui, W., …Hoeft, M. (2022). The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies. Monthly Notices of the Royal Astronomical Society, 511(2), 2897-2913. https://doi.org/10.1093/mnras/stac275

Using the data set of the three hundred project, i.e. a suite of 324 hydrodynamical resimulations of cluster-sized haloes, we study galaxy cluster mergers and their effect on colour and luminosity changes of their brightest cluster galaxies (BCG). We... Read More about The three hundred project: Galaxy cluster mergers and their impact on the stellar component of brightest cluster galaxies.

Charting galactic accelerations - II: How to ‘learn’ accelerations in the solar neighbourhood (2022)
Journal Article
Naik, A. P., An, J., Burrage, C., & Evans, N. W. (2022). Charting galactic accelerations - II: How to ‘learn’ accelerations in the solar neighbourhood. Monthly Notices of the Royal Astronomical Society, 511(2), 1609-1621. https://doi.org/10.1093/mnras/stac153

Gravitational acceleration fields can be deduced from the collisionless Boltzmann equation, once the distribution function is known. This can be constructed via the method of normalizing flows from data sets of the positions and velocities of stars.... Read More about Charting galactic accelerations - II: How to ‘learn’ accelerations in the solar neighbourhood.