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Résumé |
“Celestial CFT” is a formalism which attempts to recast quantum gravity in
(d+2)-dimensional asymptotically flat spacetimes in terms of a d-dimensional
Euclidean CFT residing at the conformal boundary. I will discuss certain
universal aspects of this correspondence. As in Anti-de Sitter space, bulk
gravitons produce a boundary stress tensor, and bulk gluons furnish boundary
conserved currents. I will also show that continuous spaces of vacua in the bulk
map directly onto the conformal manifold of the boundary CFT. This
correspondence provides a new perspective on the role of the BMS group in flat
space holography, and offers a new interpretation of the antisymmetric double-
soft gluon theorem in terms of the curvature of an infinite-dimensional vacuum
manifold. |
