Apparaît dans la collection : 2023 - T1A - WS1 - Quantum gravity and random geometry

The quantum partition function of causal set quantum gravity is a phase weighted sum over all locally finite posets or causal sets. As the size $n$ of the causal sets grows, however, the overwhelmingly dominant entropic contribution comes from a class of causal sets that look nothing like continuum spacetime. A long standing question has been whether this entropy can be overcome in the large $n$, classical limit, by the discrete Einstein-Hilbert Action to give spacetime-like causal sets a fighting chance. I will discuss recent progress on this question as well as some of the open strands of questions that remain.