“School of Particles And Accelerator”

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Paper   IPM / Particles And Accelerator / 13594
School of Particles and Accelerator
  Title:   Aspects of Flat/CCFT Correspondence
  Author(s): 
1.  Reza Fareghbal
2.  Ali Naseh
  Status:   Published
  Journal: Class.Quant.Grav
  No.:  135013
  Vol.:  32
  Year:  2015
  Supported by:  IPM
  Abstract:
Flat/CCFT is a correspondence between gravity in asymptotically flat backgrounds and a field theory which is given by contraction of conformal field theory. In order to find the dictionary of Flat/CCFT correspondence one can start from AdS/CFT and take the contraction of CFT in the boundary as the dual description of the flat-space limit (zero cosmological constant limit) of the asymptotically AdS spacetimes in the bulk side. In this paper we study some aspects of this correspondence for Flat_3/CCFT_2 case. We calculate the charge algebra of symmetry generators by using the stress tensor of three dimensional asymptotically flat spacetimes proposed by Flat/CCFT correspondence and show that it is the BMS3 algebra with known central charges. We also calculate the Cardy-like formula of CCFT just by contraction of the proper formula in CFT

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