Supersymmetry and Superstrata in Three Dimensions

Abstract

We analyze the supersymmetry transformations of gauged $SO(4)$ supergravity coupled to extra hypermultiplets in three dimensions, and find large families of smooth BPS solutions that preserve four supersymmetries. These BPS solutions are part of the consistent truncation of some families of six-dimensional superstrata. From the three-dimensional perspective, these solutions give rise to "smoothly-capped BTZ" geometries. We show how the twisting of the spin connection, the holomorphy of the fields, and the Chern-Simons connections all play an essential role in the existence of these supersymmetric solutions. This paper also closes the circle on the consistent truncation of superstrata, showing precisely how every feature of the superstratum enters into the three-dimensional BPS structure.

arXiv comment37 pages; corrected typos and a sign in equation (2.67)

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• New Superstrata from Three-Dimensional Supergravity
• AdS${}_3$ holography for non-BPS geometries
• Non-BPS Bubbling Geometries in AdS${}_3$
• Toroidal Tidal Effects in Microstate Geometries
• Resolving Black-Hole Microstructure with New Momentum Carriers
• The (amazing) Super-Maze
• Linearizing the BPS Equations with Vector and Tensor Multiplets
• Q-Balls Meet Fuzzballs: Non-BPS Microstate Geometries