Outputs (199)

Impact of Inner Heliospheric Boundary Conditions on Solar Wind Predictions at Earth (2020)
Journal Article
Gonzi, S., Weinzierl, M., Bocquet, F., Bisi, M., Odstrcil, D., Jackson, B., Yeates, A., Jackson, D., Henney, C., & Nikolos Arge, C. (2021). Impact of Inner Heliospheric Boundary Conditions on Solar Wind Predictions at Earth. Space Weather, 19(1), https://doi.org/10.1029/2020sw002499

Predictions of the physical parameters of the solar wind at Earth are at the core of operational space weather forecasts. Such predictions typically use line-of-sight observations of the photospheric magnetic field to drive a heliospheric model. The... Read More about Impact of Inner Heliospheric Boundary Conditions on Solar Wind Predictions at Earth.

Toward a 3d Ising model with a weakly-coupled string theory dual (2020)
Journal Article
Iqbal, N., & McGreevy, J. (2020). Toward a 3d Ising model with a weakly-coupled string theory dual. SciPost Physics, 9(2), Article 019. https://doi.org/10.21468/scipostphys.9.2.019

It has long been expected that the 3d Ising model can be thought of as a string theory, where one interprets the domain walls that separate up spins from down spins as two-dimensional string worldsheets. The usual Ising Hamiltonian measures the area... Read More about Toward a 3d Ising model with a weakly-coupled string theory dual.

A systematic approach to Kähler moduli stabilisation (2020)
Journal Article
AbdusSalam, S., Abel, S., Cicoli, M., Quevedo, F., & Shukla, P. (2020). A systematic approach to Kähler moduli stabilisation. Journal of High Energy Physics, 2020(8), Article 047. https://doi.org/10.1007/jhep08%282020%29047

Achieving full moduli stabilisation in type IIB string compactifications for generic Calabi-Yau threefolds with hundreds of Kähler moduli is notoriously hard. This is due not just to the very fast increase of the computational complexity with the num... Read More about A systematic approach to Kähler moduli stabilisation.

Curvature Calculations for Antitrees (2020)
Book Chapter
Cushing, D., Liu, S., Muench, F., & Peyerimhoff, N. (2020). Curvature Calculations for Antitrees. In M. Keller, D. Lenz, & R. K. Wojciechowski (Eds.), Analysis and geometry on graphs and manifolds (21-54). Cambridge University Press. https://doi.org/10.1017/9781108615259.003

In this article we prove that antitrees with suitable growth properties are examples of infinite graphs exhibiting strictly positive curvature in various contexts: in the normalized and non-normalized Bakry-Émery setting as well in the Ollivier-Ricci... Read More about Curvature Calculations for Antitrees.

Bions and Instantons in Triple-well and Multi-well Potentials (2020)
Book Chapter
Dunne, G. V., Sulejmanpasic, T., & Ünsal, M. (2020). Bions and Instantons in Triple-well and Multi-well Potentials. In A. Niemi, T. Tomboulis, & K. K. Phua (Eds.), Roman Jackiw: 80th Birthday Festschrift (119-148). World Scientific Publishing. https://doi.org/10.1142/9789811210679_0015

Quantum systems with multiple degenerate classical harmonic minima exhibit new non-perturbative phenomena which are not present for the double-well and periodic potentials. The simplest characteristic example of this family is the triple-well potenti... Read More about Bions and Instantons in Triple-well and Multi-well Potentials.

Jordan – Cattaneo waves: Analogues of compressible flow (2020)
Journal Article
Straughan, B. (2020). Jordan – Cattaneo waves: Analogues of compressible flow. Wave Motion, 98, Article 102637. https://doi.org/10.1016/j.wavemoti.2020.102637

We review work of Jordan on a hyperbolic variant of the Fisher - KPP equation, where a shock solution is found and the amplitude is calculated exactly. The Jordan procedure is extended to a hyperbolic variant of the Chafee – Infante equation. Extensi... Read More about Jordan – Cattaneo waves: Analogues of compressible flow.

A sensitivity analysis and error bounds for the adaptive lasso (2020)
Presentation / Conference Contribution
Basu, T., Einbeck, J., & Troffaes, M. (2020, December). A sensitivity analysis and error bounds for the adaptive lasso. Presented at International Workshop on Statistical Modelling, Bilbao

Sparse regression is an efficient statistical modelling technique which is of major relevance for high dimensional problems. There are several ways of achieving sparse regression, the well-known lasso being one of them. However, lasso variable select... Read More about A sensitivity analysis and error bounds for the adaptive lasso.

Nonlinear Stability for Thermal Convection in a Brinkman Porous Material with Viscous Dissipation (2020)
Journal Article
Straughan, B. (2020). Nonlinear Stability for Thermal Convection in a Brinkman Porous Material with Viscous Dissipation. Transport in Porous Media, 134(2), 303-314. https://doi.org/10.1007/s11242-020-01446-5

We investigate nonlinear stability in a model for thermal convection in a saturated porous material using Brinkman theory, taking into account viscous dissipation effects. There are (at least) two models for viscous dissipation available, and we incl... Read More about Nonlinear Stability for Thermal Convection in a Brinkman Porous Material with Viscous Dissipation.

Morphology control of nickel nanoparticles prepared in situ within silica aerogels produced by novel ambient pressure drying (2020)
Journal Article
Lu, J., Wang, J., Hassan, K. T., Talmantaite, A., Xiao, Z., Hunt, M. R., & Šiller, L. (2020). Morphology control of nickel nanoparticles prepared in situ within silica aerogels produced by novel ambient pressure drying. Scientific Reports, 10(1), Article 11743. https://doi.org/10.1038/s41598-020-68510-4

Silica aerogels are low density solids with high surface area and high porosity which are ideal supports for catalyst materials. The main challenge in aerogel production is the drying process, which must remove liquid from the pores of the wet gel wh... Read More about Morphology control of nickel nanoparticles prepared in situ within silica aerogels produced by novel ambient pressure drying.

Holographic Abrikosov lattices (2020)
Journal Article
Donos, A., Gauntlett, J. P., & Pantelidou, C. (2020). Holographic Abrikosov lattices. Journal of High Energy Physics, 2020(7), Article 095. https://doi.org/10.1007/jhep07%282020%29095

We study black hole solutions of D = 4 Einstein-Maxwell theory coupled to a charged scalar field that are holographically dual to a d = 3 conformal field theory with a non-vanishing chemical potential and constant magnetic field. We numerically const... Read More about Holographic Abrikosov lattices.