At what university did professor Lee Smolin popularize the theory of casual dynamical triangulation (CDT)? 
Causal dynamical triangulation: Causal dynamical triangulation (abbreviated as CDT) theorized by Renate Loll, Jan Ambjørn and Jerzy Jurkiewicz, and popularized by Fotini Markopoulou and Lee Smolin, is an approach to quantum gravity that like loop quantum gravity is background independent.
i don't know