Linear Bosonic Quantum Field Theories Arising from Causal Variational Principles

TL;DR

This paper demonstrates how linearized fields from causal variational principles can generate linear bosonic quantum field theories, analyzing their properties and constructing special states within the framework of local quantum physics.

Contribution

It introduces a novel approach linking causal variational principles to linear bosonic quantum field theories and constructs distinguished quasi-free states.

Findings

Linearized fields from causal variational principles produce bosonic quantum field theories.

The properties of these theories align with local quantum physics axioms.

Distinguished quasi-free states are explicitly constructed.

Abstract

It is shown that the linearized fields of causal variational principles give rise to linear bosonic quantum field theories. The properties of these field theories are studied and compared with the axioms of local quantum physics. Distinguished quasi-free states are constructed.