6 citations · 10 across the 3 of their papers we have counts for
6 papers · 1 filter
Instanton Counting and Chern-Simons Theory
Amer Iqbal, Amir-Kian Kashani-Poor
The instanton partition function of N=2, D=4 SU(2) gauge theory is obtained by taking the field theory limit of the topological open string partition function, given by a Chern-Sim…
A note on E-strings
Amer Iqbal
We study BPS states in type IIA string compactification on a local Calabi-Yau 3-fold which are related to the BPS states of the E-string. Using Picard-Lefshetz transformations of t…
D-Branes And Mirror Symmetry
Kentaro Hori, Amer Iqbal, Cumrun Vafa
We study (2,2) supersymmetric field theories on two-dimensional worldsheet with boundaries. We determine D-branes (boundary conditions and boundary interactions) that preserve half…
Tachyon Condensation on a non-BPS D-brane
Amer Iqbal, Asad Naqvi
We extend the recent computation of the tachyon potential by Berkovits, Sen and Zwiebach by including level two fields and keeping up to level four terms in the action. We find 90.…
Uncovering Infinite Symmetries on [p,q] 7-branes: Kac-Moody Algebras and Beyond
Oliver DeWolfe, Tamas Hauer, Amer Iqbal +1
In a previous paper we explored how conjugacy classes of the modular group classify the symmetry algebras that arise on type IIB [p,q] 7-branes. The Kodaira list of finite Lie alge…
Uncovering the Symmetries on [p,q] 7-branes: Beyond the Kodaira Classification
Oliver DeWolfe, Tamas Hauer, Amer Iqbal +1
We begin a classification of the symmetry algebras arising on configurations of type IIB [p,q] 7-branes. These include not just the Kodaira symmetries that occur when branes coales…