PIRSA:25030067

Combinatorial interpretation of the causal set d'Alembertian

Yeats, K. (2025). Combinatorial interpretation of the causal set d'Alembertian. Perimeter Institute. https://pirsa.org/25030067

Yeats, Karen. Combinatorial interpretation of the causal set d'Alembertian. Perimeter Institute, Mar. 14, 2025, https://pirsa.org/25030067 

          @misc{ pirsa_PIRSA:25030067,
            doi = {10.48660/25030067},
            url = {https://pirsa.org/25030067},
            author = {Yeats, Karen},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Combinatorial interpretation of the causal set d{\textquoteright}Alembertian},
            publisher = {Perimeter Institute},
            year = {2025},
            month = {mar},
            note = {PIRSA:25030067 see, \url{https://pirsa.org}}
          }

Karen Yeats University of Waterloo

Talk numberPIRSA:25030067
DOI10.48660/25030067
Collection
Talk Type Conference
Subject

Abstract

Causal set theory is an approach to quantum gravity where the underlying spacetime is a locally finite poset. Glaser gave a formula for the causal set theory analogue of the d'Alembertian in general dimension (growing out of previous work of Sorkin, Benincasa and Dowker, and Dowker and Glaser). The formula contains rational coefficients. Who can resist trying to find something that these coefficients count -- not me! -- so I will tell you about such a something.