Effective Field Theory description of Phantom Fields

TL;DR

This paper demonstrates how a simple field theory on a complex gauge background can mimic phantom fields, leading to an effective equation of state with w<-1 in cosmology.

Contribution

It introduces a novel approach where a basic field theory can produce phantom-like behavior in cosmological models.

Findings

Field theory can behave as a phantom field on non-trivial gauge backgrounds.

The model contributes to effective w<-1 state equations in cosmology.

Provides a new perspective on phantom field origins.

Abstract

In this work I show that a simple Field Theory on a non trivial gauge background may behave as a phantom field and contribute to an effective $w<-1$ state equation fluid contribution to cosmology.