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arXiv · 1612.03879

Multi-centered AdS$_3$ solutions from Virasoro conformal blocks

Ondřej Hulík·Tomáš Procházka·Joris Raeymaekers
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Abstract

We revisit the construction of multi-centered solutions in three-dimensional anti-de Sitter gravity in the light of the recently discovered connection between particle worldlines and classical Virasoro conformal blocks. We focus on multi-centered solutions which represent the backreaction of point masses moving on helical geodesics in global AdS$_3$, and argue that their construction reduces to a problem in Liouville theory on the disk with Zamolodchikov-Zamolodchikov boundary condition. In order to construct the solution one needs to solve a certain monodromy problem which we argue is solved by a vacuum classical conformal block on the sphere in a particular channel. In this way we construct multi-centered gravity solutions by using conformal blocks special functions. We show that our solutions represent left-right asymmetric configurations of operator insertions in the dual CFT. We also provide a check of our arguments in an example and comment on other types of solutions.

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Ondřej Hulík, Tomáš Procházka, Joris Raeymaekers. 2017-02-27. Multi-centered AdS$_3$ solutions from Virasoro conformal blocks. https://doi.org/10.1007/jhep03(2017)129

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