28 citations · 154 across the 14 of their papers we have counts for
14 papers
Seven-dimensional super Yang-Mills at negative coupling
Joseph A. Minahan, Usman Naseer, Charles Thull
We consider the partition function for Euclidean super Yang-Mills on a squashed seven-sphere. We show that the localization locus of the partition function has instanton me…
Flavor deformations and supersymmetry enhancement in theories
Usman Naseer, Charles Thull
We study theories on four-dimensional manifolds that admit a Killing vector with isolated fixed points. It is possible to deform these theories by coupling posi…
Squashing and supersymmetry enhancement in three dimensions
Joseph Minahan, Usman Naseer, Charles Thull
We consider mass-deformed theories with supersymmetry on round and squashed three-spheres. By embedding the supersymmetric backgrounds in extended supergravity we s…
Conformal field theories on deformed spheres, anomalies, and supersymmetry
Joseph A. Minahan, Usman Naseer, Charles Thull
We study the free energy of four-dimensional CFTs on deformed spheres. For generic nonsupersymmetric CFTs only the coefficient of the logarithmic divergence in the free energy is p…
Entanglement Entropy in Closed String Theory
Usman Naseer
In local quantum field theory, the entanglement entropy of a region is divergent due to the arbitrary short-wavelength correlations near the boundary of the region. Quantum gravita…
Extremal isosystolic metrics with multiple bands of crossing geodesics
Usman Naseer, Barton Zwiebach
We apply recently developed convex programs to find the minimal-area Riemannian metric on -sided polygons () with length conditions on curves joining opposite sides. W…
Gauge theories on spheres with 16 supercharges and non-constant couplings
Joseph A. Minahan, Usman Naseer
We construct a class of theories with 16 supersymmetries on spheres of dimension nine and less. The gauge coupling and mass terms for the scalar fields depend on the polar angle aw…
(1,0) gauge theories on the six-sphere
Usman Naseer
We construct gauge theories with a vector-multiplet and hypermultiplets of supersymmetry on the six-sphere. The gauge coupling on the sphere depends on the polar angle. Thi…
Analytic continuation of dimensions in supersymmetric localization
Anastasios Gorantis, Joseph A. Minahan, Usman Naseer
We compute the perturbative partition functions for gauge theories with eight supersymmetries on spheres of dimension , proving a conjecture by the second author. We apply s…
One-loop tests of supersymmetric gauge theories on spheres
Joseph A. Minahan, Usman Naseer
We show that a recently conjectured form for perturbative supersymmetric partition functions on spheres of general dimension is consistent with the flat space limit of 6-dimens…
On the curious spectrum of duality invariant higher-derivative gravity
Olaf Hohm, Usman Naseer, Barton Zwiebach
We analyze the spectrum of the exactly duality and gauge invariant higher-derivative double field theory. While this theory is based on a chiral CFT and does not correspond to a st…
Three-point Functions in Duality-Invariant Higher-Derivative Gravity
Usman Naseer, Barton Zwiebach
Doubled -geometry is the simplest higher-derivative gravitational theory with exact global duality symmetry. We use the double metric formulation of this theory to compute on-s…
Canonical formulation and conserved charges of double field theory
Usman Naseer
We provide the canonical formulation of double field theory. It is shown that this dynamics is subject to primary and secondary constraints. The Poisson bracket algebra of secondar…
A note on large gauge transformations in double field theory
Usman Naseer
We give a detailed proof of the conjecture by Hohm and Zwiebach in double field theory. This result implies that their proposal for large gauge transformations in terms of the Jaco…