B.Sc. Jonathan Karl

The AdS/CFT correspondence is one of the most remarkable discoveries in theoretical physics of the last 25 years. It has fundamentally changed the way physicists view gravity, as well as providing tools to study strongly coupled quantum systems. In this talk, I will present Maldacena's original derivation of the correspondence, which is based on a duality between open and closed strings, in the presence of D3-branes. Furthermore, I will present a generalization of the correspondence to discrete spacetime. I consider aperiodic spin chains, as possible boundary theories in the discrete setup. Finally, I propose a discrete analogue of JT gravity, defined on a hyperbolic lattice as a dual bulk theory.