533 citations · 1.7k across the 63 of their papers we have counts for
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Computational Complexity of Vacua and Near-Vacua in Field and String Theory
James Halverson, Fabian Ruehle
We demonstrate that the problems of finding stable or metastable vacua in a low energy effective field theory requires solving nested NP-hard and co-NP-hard problems, while the pro…
Calabi-Yau Manifolds and SU(3) Structure
Magdalena Larfors, Andre Lukas, Fabian Ruehle
We show that non-trivial SU(3) structures can be constructed on large classes of Calabi-Yau three-folds. Specifically, we focus on Calabi-Yau three-folds constructed as complete in…
Dark Glueballs and their Ultralight Axions
James Halverson, Brent D. Nelson, Fabian Ruehle +1
Dark gauge sectors and axions are well-motivated in string theory. We demonstrate that if a confining gauge sector gives rise to dark glueballs that are a fraction of the dark matt…
Global tensor-matter transitions in F-theory
Markus Dierigl, Paul-Konstantin Oehlmann, Fabian Ruehle
We use F-theory to study gauge algebra preserving transitions of 6d supergravity theories that are connected by superconformal points. While the vector multiplets remain unchanged,…
NS5-Branes and Line Bundles in Heterotic/F-Theory Duality
Andreas P. Braun, Callum R. Brodie, Andre Lukas +1
We study F-theory duals of heterotic line bundle models on elliptically fibered Calabi-Yau threefolds. These models necessarily contain NS5-branes which are geometrised in the dual…