An inverse scattering formalism for STU supergravity
Despoina Katsimpouri (Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut), Am Mühlenberg 1, DE-14476 Potsdam, Germany); Axel Kleinschmidt (Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut), Am Mühlenberg 1, DE-14476 Potsdam, Germany, International Solvay Institutes ULB-Campus Plaine CP231, BE-1050 Brussels, Belgium); Amitabh Virmani (Institute of Physics, Sachivalaya Marg, Bhubaneshwar, Odisha, 751005 India)
STU supergravity becomes an integrable system for solutions that effectively only depend on two variables. This class of solutions includes the Kerr solution and its charged generalizations that have been studied in the literature. We here present an inverse scattering method that allows to systematically construct solutions of this integrable system. The method is similar to the one of Belinski and Zakharov for pure gravity but uses a different linear system due to Breitenlohner and Maison and here requires some technical modifications. We illustrate this method by constructing a four-charge rotating solution from flat space. A generalization to other set-ups is also discussed.
