English

Knotted 4-regular graphs II: Consistent application of the Pachner moves

General Relativity and Quantum Cosmology 2024-06-06 v1 Mathematical Physics math.MP

Abstract

A common choice for the evolution of the knotted graphs in loop quantum gravity is to use the Pachner moves, adapted to graphs from their dual triangulations. Here, we show that the natural way to consistently use these moves is on framed graphs with edge twists, where the Pachner moves can only be performed when the twists, and the vertices the edges are incident on, meet certain criteria. For other twists, one can introduce an algebraic object, which allow any knotted graph with framed edges to be written in terms of a generalized braid group.

Keywords

Cite

@article{arxiv.2406.02655,
  title  = {Knotted 4-regular graphs II: Consistent application of the Pachner moves},
  author = {Daniel Cartin},
  journal= {arXiv preprint arXiv:2406.02655},
  year   = {2024}
}

Comments

26 pages; 34 figures

R2 v1 2026-06-28T16:53:30.729Z