Towards a flat space Carrollian hologram from AdS4/CFT3
Arthur Lipstein, Romain Ruzziconi, Akshay Yelleshpur Srikant
Abstract
A bstract Finding a concrete example holography in four dimensional asymptotically flat space is an important open problem. A natural strategy is to take the flat space limit of the celebrated AdS 4 /CFT 3 correspondence, which relates M-theory in AdS 4 ×S 7 to a certain superconformal Chern-Simons-matter theory known as the ABJM theory. In this limit, the boundary of AdS 4 becomes null infinity and the ABJM theory should exhibit an emergent superconformal Carrollian symmetry. We investigate this possibility by matching the Carrollian limit of ABJM correlators with four-dimensional supergravity amplitudes that arise from taking the flat space limit of AdS 4 ×S 7 and reducing along the S 7 . We also present a general analysis of three-dimensional superconformal Carrollian symmetry.