7 papers
Geometric Unification of Higgs Bundle Vacua
Mirjam Cvetic, Jonathan J. Heckman, Thomas B. Rochais +2
Higgs bundles are a central tool used to study a range of intersecting brane systems in string compactifications. Solutions to the internal gauge theory equations of motion for the…
Yukawa Hierarchies in Global F-theory Models
Mirjam Cvetic, Ling Lin, Muyang Liu +2
We argue that global F-theory compactifications to four dimensions generally exhibit higher rank Yukawa matrices from multiple geometric contributions known as Yukawa points. The h…
T-Branes and Backgrounds
Rodrigo Barbosa, Mirjam Cvetič, Jonathan J. Heckman +3
Compactification of M- / string theory on manifolds with structure yields a wide variety of 4D and 3D physical theories. We analyze the local geometry of such compactificatio…
The two faces of T-branes
Iosif Bena, Johan Blåbäck, Raffaele Savelli +1
We establish a brane-brane duality connecting T-branes to collections of ordinary D-branes. T-branes are intrinsically non-Abelian brane configurations with worldvolume flux, where…
Pixelated Dark Energy
Jonathan J. Heckman, Craig Lawrie, Ling Lin +2
We study the phenomenology of a recent string construction with a quantum mechanically stable dark energy. A mild supersymmetry protects the vacuum energy but also allows $O(10 - 1…
F-theory and Dark Energy
Jonathan J. Heckman, Craig Lawrie, Ling Lin +1
Motivated by its potential use as a starting point for solving various cosmological constant problems, we study F-theory compactified on the warped product $\mathbb{R}_{\text{time}…