Discrete mechanics: a sequential growth dynamics for causal sets, and a self-organization of particles

Details Discrete mechanics: a sequential growth dynamics for causal sets, and a self-organization of particles Discrete mechanics: a sequential growth dynamics for causal sets, and a self-organization of particles

2010-04-28

arxiv.org/abs/1004.5077v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

46 pages, 23 figures

Scientific paper

A model of a discrete pregeometry on a microscopic scale is introduced. This model is a finite network of finite elementary processes. The mathematical description is a d-graph that is a generalization of a graph. This is the particular case of a causal set. The aim of this study is to construct the particles as emergent structures. The particles in this model must be cyclic processes. The general dynamics and several examples are given. A simple dynamics generates a hierarchy of cyclic processes. An algebraic representation of this dynamics is given. It is based on the algebra of creation and destruction operators. Loops are described by bosonic operators and causal connections are described by fermionic operators.

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