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arXiv · 1805.05338

Spherical Branes

Nikolay Bobev·Pieter Bomans·Fridrik Freyr Gautason
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Abstract

We construct new solutions of ten-dimensional supergravity with sixteen supercharges which describe the backreaction of D$p$-branes with spherical worldvolume. These solutions are holographically dual to the $(p+1)$-dimensional maximally supersymmetric Yang-Mills theory on $S^{p+1}$. The finite size of the sphere provides an IR cut-off for the gauge theory which is manifested in the supergravity solution as a smooth cap-off of the geometry. In the UV the size of the sphere plays no role and the backgrounds asymptote to the well-known supergravity solutions that describe the near-horizon limit of flat D$p$-branes. We compute the on-shell action of our spherical brane solutions and show that it is in agreement with recent supersymmetric localization results for the free energy of maximal SYM theory on $S^{p+1}$.

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Nikolay Bobev, Pieter Bomans, Fridrik Freyr Gautason. 2018-05-14. Spherical Branes. https://doi.org/10.1007/jhep08(2018)029

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