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Paper   IPM / Physic / 16465
School of Physics
  Title:   Flat space holography in spin-2 extended dilaton-gravity
1.  H.R. Afshar
2.  E. Esmaili
3.  H.R. Safari
  Status:   Published
  Journal: JHEP
  Vol.:  07
  Year:  2021
  Pages:   126
  Supported by:  IPM
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) C^(S^1) Vec(S^1) when the central element of the Heisenberg subgroup acts trivially (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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