Mar 10–14, 2025
Perimeter Institute for Theoretical Physics
America/Toronto timezone

Combinatorial interpretation of the causal set d'Alembertian

Mar 14, 2025, 9:15 a.m.
45m
PI/4-405 - Bob Room (Perimeter Institute for Theoretical Physics)

PI/4-405 - Bob Room

Perimeter Institute for Theoretical Physics

60

Speaker

Karen Yeats (University of Waterloo)

Description

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.

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