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3d gravity and dual (warped) CFTs

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I will present an overview of recent results in 3d gravity in connection with holography. I will first explain why the dual Liouville theory to Einstein gravity can be defined everywhere in spacetime, thanks to the omnipresence of Virasoro charges in the spacetime bulk. I’ll then present alternative boundary conditions to the Brown-Henneaux boundary conditions in AdS3 and derive the semi-classical field theory dual. I will finally present an example of a brane near-horizon geometry with local dynamics, which therefore evades the no-dynamics conjecture, and with features which can be described semi-classically by nearly a CFT .

This talk is part of the DAMTP Friday GR Seminar series.

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