470 citations · 1.3k across the 25 of their papers we have counts for
25 papers
Holomorphic Currents and Duality in N=1 Supersymmetric Theories
Andrei Johansen
Twisted supersymmetric theories on a product of two Riemann surfaces possess non-local holomorphic currents in a BRST cohomology. The holomorphic currents act as vector fields on t…
Large N limit of orbifold field theories
Michael Bershadsky, Andrei Johansen
We consider certain orbifoldization of the field theories that leads to field theories in 4 dimensions. These theories were recently analyzed using th…
F-theory and linear sigma models
M. Bershadsky, T. M. Chiang, B. R. Greene +2
We present an explicit method for translating between the linear sigma model and the spectral cover description of SU(r) stable bundles over an elliptically fibered Calabi-Yau mani…
Nonperturbative Formulas for Central Functions of Supersymmetric Gauge Theories
D. Anselmi, D. Z. Freedman, M. T. Grisaru +1
For quantum field theories that flow between ultraviolet and infrared fixed points, central functions, defined from two-point correlators of the stress tensor and conserved current…
F-theory, Geometric Engineering and N=1 Dualities
M. Bershadsky, A. Johansen, T. Pantev +2
We consider geometric engineering of N=1 supersymmetric QFTs with matter in terms of a local model for compactification of F-theory on Calabi-Yau fourfold. By bringing 3-branes nea…
Colliding Singularities in F-theory and Phase Transitions
Michael Bershadsky, Andrei Johansen
We study F-theory on elliptic threefold Calabi-Yau near colliding singularities. We demonstrate that resolutions of those singularities generically correspond to transitions to pha…