# Probing the Fundamental Nature of Spacetime with the Renormalization Group

Mar 23 – 27, 2015
Nordita, Stockholm
Europe/Stockholm timezone

## What is the large-scale effective action of (2+1)-dimensional causal dynamical triangulations?

Mar 24, 2015, 9:50 AM
50m
132:028 (Nordita, Stockholm)

Joshua Cooperman

### Description

The literature contains several analyses suggesting that the large-scale effective action of (2+1)-dimensional causal dynamical triangulations has the form of a minisuperspace model of projectable Horava-Lifshitz gravity. I weigh in on these suggestions by reporting the results of a comprehensive statistical analysis comparing several candidate effective actions.  Controversial Statement: The large-scale effective action of (3+1)-dimensional causal dynamical triangulations has the form of a minisuperspace model of Einstein gravity.

 Slides