# Causal Set Dynamics and Elementary Particles

DOI: 10.1023/A:1013273214769

- Cite this article as:
- Krugly, A.L. International Journal of Theoretical Physics (2002) 41: 1. doi:10.1023/A:1013273214769

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## Abstract

A causal set is considered a finite, acyclic oriented graph with special restrictions: each vertex has two incident edges directed to this vertex and two incident edges directed from this vertex. This graph is called a causal graph. The vertex with incident edges is called an *X*-structure. Quantum measurements are discussed. A dynamics of the causal graph is a random sequence of elementary interactions of edges that is described by complex amplitudes. These amplitudes correspond to each pair of interacting edges. The edges are elementary particles. The mass of a particle is a probability of the interaction. An equation of particles is proposed. In a simple case this equation for *X*-structure is the Dirac's equation. The edges are fermions with the spin 1/2.