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5 papers · 2 filters
Harmonic R-matrices for Scattering Amplitudes and Spectral Regularization
Livia Ferro, Tomasz Lukowski, Carlo Meneghelli +2
Planar N=4 super Yang-Mills appears to be integrable. While this allows to find this theory's exact spectrum, integrability has hitherto been of no direct use for scattering amplit…
Double-logarithms in Einstein-Hilbert gravity and supergravity
Jochen Bartels, Lev N. Lipatov, Agustin Sabio Vera
We study the interplay between graviton reggeization and double-logarithmic in energy contributions to four-graviton scattering in theories with and without supersymmetry. Predicti…
Multi-Regge Limit of the n-Gluon Bubble Ansatz
J. Bartels, V. Schomerus, M. Sprenger
We investigate n-gluon scattering amplitudes in the multi-Regge region of N=4 supersymmetric Yang-Mills theory at strong coupling. Through a careful analysis of the thermodynamic b…
From Baxter Q-Operators to Local Charges
Rouven Frassek, Carlo Meneghelli
We discuss how the shift operator and the Hamiltonian enter the hierarchy of Baxter Q-operators in the example of gl(n) homogeneous spin-chains. Building on the construction that w…
Supersymmetric Vacua in N=2 Supergravity
Jan Louis, Paul Smyth, Hagen Triendl
We use the embedding tensor formalism to analyse maximally symmetric backgrounds of N=2 gauged supergravities which have the full N=2 supersymmetry. We state the condition for N=2…