158 citations · 1.3k across the 43 of their papers we have counts for
6 papers · 1 filter
Factorized soft graviton theorems at loop level
Johannes Broedel, Marius de Leeuw, Jan Plefka +1
We analyze the low-energy behavior of scattering amplitudes involving gravitons at loop level in four dimensions. The single-graviton soft limit is controlled by soft operators whi…
Constraining subleading soft gluon and graviton theorems
Johannes Broedel, Marius de Leeuw, Jan Plefka +1
We show that the form of the recently proposed subleading soft graviton and gluon theorems in any dimension are severely constrained by elementary arguments based on Poincaré and g…
Deformed one-loop amplitudes in N = 4 super-Yang-Mills theory
Johannes Broedel, Marius de Leeuw, Matteo Rosso
We investigate Yangian-invariant deformations of one-loop amplitudes in N = 4 super-Yang-Mills theory employing an algebraic representation of amplitudes. In this language, we repr…
On the exact spectrum and mirror duality of the (AdS_5 x S^5)_eta superstring
Gleb Arutyunov, Marius de Leeuw, Stijn J. van Tongeren
We discuss the spectrum of a string propagating on eta-deformed AdS_5 x S^5 by treating its world-sheet theory as an integrable quantum field theory. The exact S-matrix of this fie…
A dictionary between R-operators, on-shell graphs and Yangian algebras
Johannes Broedel, Marius de Leeuw, Matteo Rosso
We translate between different formulations of Yangian invariants relevant for the computation of tree-level scattering amplitudes in N=4 super-Yang--Mills theory. While the R-oper…
The RTT-Realization for the Deformed gl(2|2) Yangian
Niklas Beisert, Marius de Leeuw
In this paper we work out the RTT-realization for the Yangian algebra of the Hubbard model and AdS/CFT correspondence. We find that this Yangian algebra is of a non-standard type i…