Connectedness of the boundary in the AdS / CFT correspondence

Oct, 1999

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Abstract:
Let M be a complete Einstein manifold of negative curvature, and assume that (as in the AdS/CFT correspondence) it has a Penrose compactification with a conformal boundary N of positive scalar curvature. We show that under these conditions, H_n(M;Z)=0 and in particular N must be connected. These results resolve some puzzles concerning the AdS/CFT correspondence.
  • space-time: anti-de Sitter
  • field theory: conformal
  • general relativity
  • Einstein equation: solution
  • boundary condition
  • topology