Slave fermion theory of confinement in strongly anisotropic systems

TL;DR

This paper develops a slave fermion mean field theory to analyze confinement phenomena in strongly anisotropic electron systems, revealing a phase transition that suppresses coherent band formation along the c-axis.

Contribution

It introduces a novel slave fermion approach to study confinement in anisotropic correlated electron systems, highlighting a phase transition related to electron coherence.

Findings

Identifies a transition from deconfined to confined phase.

Shows suppression of coherent band formation along the c-axis.

Provides a theoretical framework for anisotropic electron confinement.

Abstract

We present a mean field treatment of a strongly correlated model of electrons in a three-dimensional anisotropic system. The mass of the bare electrons is larger in one spatial direction (the c-axis direction), than in the other two (the ab-planes). We use a slave fermion decomposition of the electronic degrees of freedom and show that there is a transition from a deconfined to a confined phase in which there is no coherent band formation along the c-axis.