PIRSA:17060028

The thick sandwich problem in (2+1)-dimensional causal dynamical triangulations

(2017). The thick sandwich problem in (2+1)-dimensional causal dynamical triangulations. Perimeter Institute. https://pirsa.org/17060028

The thick sandwich problem in (2+1)-dimensional causal dynamical triangulations. Perimeter Institute, Jun. 01, 2017, https://pirsa.org/17060028 

          @misc{ pirsa_PIRSA:17060028,
            doi = {10.48660/17060028},
            url = {https://pirsa.org/17060028},
            author = {},
            keywords = {Other},
            language = {en},
            title = {The thick sandwich problem in (2+1)-dimensional causal dynamical triangulations},
            publisher = {Perimeter Institute},
            year = {2017},
            month = {jun},
            note = {PIRSA:17060028 see, \url{https://pirsa.org}}
          }
Talk number
PIRSA:17060028
Collection
Talk Type
Subject
Abstract
Causal dynamical triangulations (CDT) is a sum-over-histories approach to quantum gravity which leverages the techniques developed in lattice quantum field theory. In this talk, I discuss the thick sandwich problem in CDT: Given initial and final spacelike hypersurfaces, each with a fixed geometry, what is the transition amplitude for one transitioning into the other? And what geometries dominate the associated path integral? I discuss preliminary studies performed in this direction. I also highlight open problems and interesting directions for future research.