157 citations · 275 across the 5 of their papers we have counts for
5 papers
A Note on Soft Factors for Closed String Scattering
Burkhard U. W. Schwab
In this note, it is shown that closed string graviton scattering amplitudes obey the same subleading soft limit as field theory graviton scattering amplitudes. The result is derive…
Cluster Algebras and the Positive Grassmannian
Miguel F. Paulos, Burkhard U. W. Schwab
Plabic graphs are intimately connected to the positroid stratification of the positive Grassmannian. The duals to these graphs are quivers, and it is possible to associate to them…
Subleading Soft Factor for String Disk Amplitudes
Burkhard U. W. Schwab
We investigate the behavior of superstring disk scattering amplitudes in the presence of a soft external momentum at finite string tension. We prove that there are no -correcti…
Subleading soft theorem in arbitrary dimension from scattering equations
Burkhard U. W. Schwab, Anastasia Volovich
We investigate the new soft graviton theorem recently proposed in arXiv:1404.4091. We use the CHY formula to prove this universal formula for both Yang-Mills theory and gravity sca…
Null Polygonal Wilson Loops in Full N=4 Superspace
Niklas Beisert, Song He, Burkhard U. W. Schwab +1
We compute the one-loop expectation value of light-like polygonal Wilson loops in N=4 super-Yang-Mills theory in full superspace. When projecting to chiral superspace we recover th…