Embedding the Bilson-Thompson model in an LQG-like framework

TL;DR

This paper proposes a framework combining spinorial tetrads and lattice symmetries to model elementary particles as braided tetrahedra, linking quantum geometry with matter in a novel way.

Contribution

It introduces a new approach to form a geometrical condensate of spinorial tetrads that naturally encodes particles as braided tetrahedra within a quantum gravity framework.

Findings

Identification of tetrahedra with braids as quasiparticles

Connection between braid attachments and preons in particle models

Proposal of a tiling model encoding geometry and matter

Abstract

We argue that the Quadratic Spinor Lagrangian approach allows us to approach the problem of forming a geometrical condensate of spinorial tetrads in a natural manner. This, along with considerations involving the discrete symmetries of lattice triangulations, lead us to discover that the quasiparticles of such a condensate are tetrahedra with braids attached to its faces and that these braid attachments correspond to the preons in Bilson-Thompson's model of elementary particles. These "spatoms" can then be put together in a tiling to form more complex structures which encode both geometry and matter in a natural manner. We conclude with some speculations on the relation between this picture and the computational universe hypothesis.