Outputs (43)

Lattice Gerbe Theory (2014)
Journal Article
Lipstein, A. E., & Reid-Edwards, R. A. (2014). Lattice Gerbe Theory. Journal of High Energy Physics, 2014(09), Article 034. https://doi.org/10.1007/jhep09%282014%29034

We formulate the theory of a 2-form gauge field on a Euclidean spacetime lattice. In this approach, the fundamental degrees of freedom live on the faces of the lattice, and the action can be constructed from the sum over Wilson surfaces associated wi... Read More about Lattice Gerbe Theory.

Ambitwistor Strings in Four Dimensions (2014)
Journal Article

We develop ambitwistor string theories for four dimensions to obtain new formulas for tree-level gauge and gravity amplitudes with arbitrary amounts of supersymmetry. Ambitwistor space is the space of complex null geodesics in complexified Minkowski... Read More about Ambitwistor Strings in Four Dimensions.

Scattering amplitudes of massive N=2 gauge theories in three dimensions. (2014)
Journal Article
Agarwal, A., Lipstein, A. E., & Young, D. (2014). Scattering amplitudes of massive N=2 gauge theories in three dimensions. Physical Review D, 89(4), Article 045020. https://doi.org/10.1103/physrevd.89.045020

We study the scattering amplitudes of mass-deformed Chern-Simons theories and Yang-Mills-Chern-Simons theories with N=2 supersymmetry in three dimensions. In particular, we derive the on-shell supersymmetry algebras which underlie the scattering matr... Read More about Scattering amplitudes of massive N=2 gauge theories in three dimensions..

From d logs to dilogs; the super Yang-Mills MHV amplitude revisited (2014)
Journal Article

Recently, loop integrands for certain Yang-Mills scattering amplitudes and correlation functions have been shown to be systematically expressible in dlog form, raising the possibility that these loop integrals can be performed directly without Feynma... Read More about From d logs to dilogs; the super Yang-Mills MHV amplitude revisited.

From the holomorphic Wilson loop to `d log' loop-integrands for super-Yang-Mills amplitudes. (2013)
Journal Article

The S-matrix for planar = 4 super Yang-Mills theory can be computed as the correlation function for a holomorphic polygonal Wilson loop in twistor space. In an axial gauge, this leads to the construction of the all-loop integrand via MHV diagrams in... Read More about From the holomorphic Wilson loop to `d log' loop-integrands for super-Yang-Mills amplitudes..

Amplitudes of 3d Yang Mills Theory (2013)
Journal Article
Lipstein, A. E., & Mason, L. (2013). Amplitudes of 3d Yang Mills Theory. Journal of High Energy Physics, 2013(01), Article 009. https://doi.org/10.1007/jhep01%282013%29009

This paper studies various properties of amplitudes in 3d super Yang Mills theory. First we explain how to obtain the amplitudes of 3d super Yang Mills theories from 4d super Yang Mills theories and obtain their helicity structure. Next, we use a 3d... Read More about Amplitudes of 3d Yang Mills Theory.

Tree-level Recursion Relation and Dual Superconformal Symmetry of the ABJM Theory (2011)
Journal Article

We propose a recursion relation for tree-level scattering amplitudes in three-dimensional Chern-Simons-matter theories. The recursion relation involves a complex deformation of momenta which generalizes the BCFW-deformation used in higher dimensions.... Read More about Tree-level Recursion Relation and Dual Superconformal Symmetry of the ABJM Theory.

One-Loop Corrections to Type IIA String Theory in AdS(4) x CP3 (2010)
Journal Article
Bandres, M. A., & Lipstein, A. E. (2010). One-Loop Corrections to Type IIA String Theory in AdS(4) x CP3. Journal of High Energy Physics, 2010(04), Article 059. https://doi.org/10.1007/jhep04%282010%29059

We study various methods for computing the one-loop correction to the energy of classical solutions to type IIA string theory in AdS4 x CP3. This involves computing the spectrum of fluctuations and then adding up the fluctuation frequencies. We focus... Read More about One-Loop Corrections to Type IIA String Theory in AdS(4) x CP3.

Dual Superconformal Symmetry of N=6 Chern-Simons Theory (2010)
Journal Article
Huang, Y., & Lipstein, A. E. (2010). Dual Superconformal Symmetry of N=6 Chern-Simons Theory. Journal of High Energy Physics, 2010(11), Article 076. https://doi.org/10.1007/jhep11%282010%29076

We demonstrate that the four and six-point tree-level amplitudes of N=6 superconformal Chern-Simons theory (ABJM) enjoy OSp(6|4) dual superconformal symmetry if one enlarges the dual superspace to include three additional Grassmann-even coordinates w... Read More about Dual Superconformal Symmetry of N=6 Chern-Simons Theory.

Amplitudes of 3D and 6D Maximal Superconformal Theories in Supertwistor Space (2010)
Journal Article

We use supertwistor space to construct scattering amplitudes of maximal superconformal theories in three and six dimensions. In both cases, the constraints of superconformal invariance and rationality imply that the three-point amplitude vanishes on-... Read More about Amplitudes of 3D and 6D Maximal Superconformal Theories in Supertwistor Space.