Speaker
Kazumi Okuyama
Description
We can construct a hermitian matrix model whose genus-zero amplitude reproduces the computation of double-scaled SYK model; we call this matrix model the DSSYK matrix model. We argue that the higher genus amplitude of DSSYK matrix model is constructed by gluing the trumpets and the discrete volume of the moduli space of Riemann surfaces. We also comment on the appearance of de Sitter JT gravity as an unstable saddle point of DSSYK matrix model.