Talks

After a short review of the gauge gravity duality, we will discuss black holes.  We will explain what the duality tells us about black holes as viewed from the outside.  We will review some of the puzzles that arise when we try to describe the black hole  interior. We will describe wormholes and their interpretation in the dual field theory as entangled states.

Matrix product operators form a natural language for describing topological quantum order. I will discuss how they arise as symmetries in PEPS, how anyon excitations arise as end points on them, and how the virtual indices of the MPO's provide a tensor product structure for the logical qubits in topological quantum computation.