2022•arXiv (Cornell University)Open access

Generalised U-dual solutions via ISO(7) gauged supergravity

Chris D. A. Blair, Sofia Zhidkova

Abstract

We study a solution generating technique in supergravity which can be viewed as a generalised version of U-duality, taking solutions of type IIA supergravity on a 6-sphere with RR flux to new solutions of 11-dimensional supergravity. The new solutions are characterised by an underlying 6-algebra structure. Our construction provides an 11-dimensional uplift of four-dimensional ISO(7) gauged supergravity, using $E_7$ exceptional geometry techniques. We focus on an example where we start with the D2 solution in type IIA supergravity and construct a new $\tfrac12$-BPS 11-dimensional solution.

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Key concepts: Supergravity, Higher-dimensional supergravity, Gauged supergravity, Dual (grammatical number), Duality (order theory), Physics, Type (biology), Focus (optics)