Würzburg Seminar on Quantum Field Theory and Gravity

Over the past 25 years, our understanding of the holographic relationship between quantum field theories and gravity in Anti de Sitter spacetime has significantly advanced. Nevertheless, the quest for a holographic duality in the context of a de Sitter universe, which closely resembles our own, has proven elusive. In my presentation, I will reexamine the Brownian SYK model in the double-scaling regime. I will elucidate both its parallels and distinctions when compared to de Sitter spacetime at a quantitative level. Additionally, I will discuss an intriguing feature of the Brownian SYK model: emergent energy conservation which is interesting from the condensed matter physics perspective.