452 citations · 816 across the 8 of their papers we have counts for
6 papers · 1 filter
The No-Triangle Hypothesis for N=8 Supergravity
N. E. J. Bjerrum-Bohr, David C. Dunbar, Harald Ita +2
We study the perturbative expansion of N=8 supergravity in four dimensions from the viewpoint of the ``no-triangle'' hypothesis, which states that one-loop graviton amplitudes in N…
MHV-Vertices for Gravity Amplitudes
N. E. J. Bjerrum-Bohr, David C. Dunbar, Harald Ita +2
We obtain a CSW-style formalism for calculating graviton scattering amplitudes and prove its validity through the use of a special type of BCFW-like parameter shift. The procedure…
On Type II Strings in Two Dimensions
Harald Ita, Harald Nieder, Yaron Oz
We consider type IIA/B strings in two-dimensions and their projection with respect to the nilpotent space-time supercharge. Based on the ground ring structure, we propose a duality…
Topological B-Model, Matrix Models, Strings and Quiver Gauge Theories
Harald Ita, Harald Nieder, Yaron Oz +1
We study topological and integrable aspects of strings. We consider the circle line theories 0A and 0B at particular radii, and the super affine theories at their self-…
Gravitational F-terms of N=1 Supersymmetric SU(N) Gauge Theories
Harald Ita, Harald Nieder, Yaron Oz
We use the generalized Konishi anomaly equations and R-symmetry anomaly to compute the exact perturbative and non-perturbative gravitational F-terms of four-dimensional N=1 supersy…
Chiral Rings, Superpotentials and the Vacuum Structure of N=1 Supersymmetric Gauge Theories
Andreas Brandhuber, Harald Ita, Harald Nieder +2
We use the Konishi anomaly equations to construct the exact effective superpotential of the glueball superfields in various N=1 supersymmetric gauge theories. We use the superpoten…