Flat space holography
20088 pages
Published in:
- Can.J.Phys. 86 (2008) 563-570
Contribution to:
DOI:
Citations per year
Abstract: (NRC Research Press)
The implementation of holography in gravitational physics has its most concrete realization in the context of the anti-de Sitter/conformal field theory (AdS/CFT) correspondence conjecture, an implication of which is that counterterms from the boundary CFT can be understood as surface terms that render the variational principle finite and well-defined for the gravity theory in the bulk. I discuss recent developments that show how such gravitational counterterms can be deployed for asymptotically flat spacetimes in any spacetime dimension d4. These actions yield conserved quantities at spacelike infinity that agree with the usual Arnowitt-Deser-Misner results but are more general. This approach removes the need for ill-defined background subtraction methods and suggests the possibility of obtaining a dual field theory to gravity theories in asymptotically flat spacetimes.PACS Nos.: 04.20.Ha, 04.60.-m, 11.25.Tq- 04.60.-m
- 04.20.Ha
- 11.25.Tq
- field theory: conformal
- space-time: dimension
- gravitation: holography
- AdS/CFT correspondence
- conservation law
- space-time: anti-de Sitter
- mathematical methods: variational
References(2)
Figures(0)