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arXiv · 2012.15807

Flat space holography in spin-2 extended dilaton-gravity

Hamid Afshar·Erfan Esmaeili·Hamid Safari
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Abstract

We present an interacting spin-2 gauge theory coupled to the two-dimensional dilaton-gravity in flat spacetime. The asymptotic symmetry group is enhanced to the central extension of Diff$(S^1)\ltimes C^\infty(S^1)\ltimes$Vec($S^1$) when the central element of the Heisenberg subgroup is zero (vanishing $U(1)$ level). Using the BF-formulation of the model we derive the corresponding boundary coadjoint action which is the spin-2 extension of the warped Schwarzian theory at vanishing $U(1)$ level. We also discuss the thermodynamics of black holes in this model.

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Hamid Afshar, Erfan Esmaeili, Hamid Safari. 2020-12-31. Flat space holography in spin-2 extended dilaton-gravity. https://doi.org/10.1007/jhep07(2021)126

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