Abelian chromomagnetic fields and confinement

TL;DR

This paper investigates how strong Abelian chromomagnetic fields affect the confinement in SU(3) gauge theory, showing that sufficiently intense fields can eliminate confinement and influence quark star physics.

Contribution

It demonstrates that increasing external Abelian chromomagnetic fields lowers the deconfinement temperature, leading to confinement destruction in SU(3) lattice gauge theory.

Findings

Strong Abelian chromomagnetic fields reduce the deconfinement temperature.

Fields above a critical strength destroy color confinement.

Implications for quark star stability and confinement mechanisms.

Abstract

We study vacuum dynamics of SU(3) lattice gauge theory at finite temperature using the lattice Schr\"odinger functional. The SU(3) vacuum is probed by means of an external constant Abelian chromomagnetic field. We find that by increasing the strength of the applied external field the deconfinement temperature decreases towards zero. This means that strong enough Abelian chromomagnetic fields destroy confinement of color. We discuss some consequences of this phenomenon on confinement and quark stars.