Illustration of mapping out bulk causal structure by analytically continued correlators, as discussed in [166] for the Schwarzschild-AdS spacetime (left panel) and in [171] for a more complicated geometry describing de Sitter universe behind the horizon of a Schwarzschild-AdS black hole (right panel). In both Penrose diagrams, the vertical solid lines represent the AdS boundaries, the top and bottom (purple) curves the curvature singularities, and the dashed diagonal lines the horizons; on right the horizontal lines are de Sitter boundaries, the vertical dashed line the de Sitter origin, and the vertical (brown) curve a domain wall separating the dS and SAdS regions. All other curves correspond to the geodesics discussed in the text.
