Spikes and spines in 4D Lorentzian simplicial quantum gravity

Abstract Simplicial approaches to quantum gravity such as quantum Regge calculus and spin foams include configurations where bulk edges can become arbitrarily large while the boundary edges are kept small. Spikes and spines are prime examples for such configurations. They pose a significant challeng...

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Bibliographic Details
Main Authors: Johanna Borissova, Bianca Dittrich, Dongxue Qu, Marc Schiffer
Format: Article
Language:English
Published: SpringerOpen 2024-10-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP10(2024)150