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DOE OSTI · 1976535

Elliptical and purely $\mathrm{NS}$ superstrata

Ganchev, Bogdan·Houppe, Anthony·Warner, Nicholas P.
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Abstract

We analyze the BPS equations in the “superstratum sector” of three-dimensional gauged supergravity. We obtain multi-parameter supersymmetric solutions that include elliptical deformations of the supertubes that underlie standard superstrata. We uplift the three-dimensional solutions to obtain the corresponding six-dimensional geometries. This yields new families of elliptically-deformed, ambi-bolar hyper-Kahler geometries in four dimensions with a non-tri-holomorphic U(1) isometry. We also find a new family of scaling superstrata whose S-dual lives entirely within the NS-sector of supergravity, and will thus be more amenable to exact analysis using string probes. In all these new superstrata, including the scaling ones, if the momentum charge is non-zero we find that the ellipse stays away from the degeneration locus in which the ellipse becomes flat.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICSblack holes in string theorysupergravity models

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Ganchev, Bogdan, Houppe, Anthony, Warner, Nicholas P.. 2022-09-08. Elliptical and purely $\mathrm{NS}$ superstrata. https://doi.org/10.1007/jhep09(2022)067

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