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(S1)⋉C∞(S1)⋉Vec(S1) 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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Afshar, H., Esmaeili, E. & Safari, H.R. Flat space holography in spin-2 extended dilaton-gravity. J. High Energ. Phys. 2021, 126 (2021). https://doi.org/10.1007/JHEP07(2021)126
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DOI: https://doi.org/10.1007/JHEP07(2021)126