“School of Particles”
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Paper IPM / Particles / 13594  


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 flatspace 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 Cardylike formula of CCFT just by contraction of the proper formula in CFT
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