Filtering CFTs at Large N - Euclidean Wormholes, Closed Universes, and Black Hole Interiors

Explore advanced concepts in theoretical physics through this 47-minute conference talk examining the relationship between conformal field theories (CFTs) at large N and gravitational phenomena. Delve into the speaker's argument that Euclidean wormhole configurations in AdS/CFT correspondence arise from erratic N-dependence in the large-N limit of CFTs. Learn about a proposed filtering procedure necessary for constructing gravitational duals of large-N CFTs in the semiclassical limit, which smooths out erratic N-dependence behavior. Investigate how Euclidean wormholes—both external ones connecting disjoint boundaries and internal ones corresponding to handles—encode correlations of erratic behavior in Euclidean partition functions. Discover the Lorentzian manifestations of these erratic-N correlations, including the emergence of closed universes, their transitions, and black hole interiors. Examine how correlations among erratic components of Euclidean partition functions relate to transitions among closed universes, leading to an infinite tower of inequalities that constrain wormhole actions. Understand the concept of quantum-volatile AdS spacetimes entangled with baby universes and explore how local operators in closed universes and black hole interiors exhibit intrinsically erratic behavior, making black hole interiors quantum-volatile.