113 citations · 1.9k across the 66 of their papers we have counts for
4 papers · 2 filters
The Landscape of M-theory Compactifications on Seven-Manifolds with Holonomy
James Halverson, David R. Morrison
We study the physics of globally consistent four-dimensional supersymmetric M-theory compactifications on manifolds constructed via twisted connected sum; the…
Non-Higgsable QCD and the Standard Model Spectrum in F-theory
Antonella Grassi, James Halverson, Julius Shaneson +1
Many four-dimensional supersymmetric compactifications of F-theory contain gauge groups that cannot be spontaneously broken through geometric deformations. These "non-Higgsable clu…
On finiteness of Type IIB compactifications: Magnetized branes on elliptic Calabi-Yau threefolds
Mirjam Cvetič, James Halverson, Denis Klevers +1
The string landscape satisfies interesting finiteness properties imposed by supersymmetry and string-theoretical consistency conditions. We study N=1 supersymmetric compactificatio…
Non-Abelian Gauge Symmetry and the Higgs Mechanism in F-theory
Antonella Grassi, James Halverson, Julius L. Shaneson
Singular fiber resolution does not describe the spontaneous breaking of gauge symmetry in F-theory, as the corresponding branch of the moduli space does not exist in the theory. Ac…