Effective Potential Approach to Quark Ferromagnetization in High Density Quark Matter

TL;DR

This paper explores the potential for spontaneous magnetization in high-density symmetric quark matter using an NJL model, revealing that tensor interactions can induce ferromagnetic condensates at high baryon densities.

Contribution

It introduces a novel analysis of quark ferromagnetization via an effective potential approach in high-density quark matter, emphasizing the role of tensor interactions.

Findings

Ferromagnetic condensate appears at high baryon density

Tensor-type four-point interactions induce magnetization

Spontaneous magnetization possible in symmetric quark matter

Abstract

A possibility of spontaneous magnetization in high density symmetric quark matter is investigated using the NJL type effective model of QCD by means of an effective potential with respect to an auxiliary field. It is shown that the quark ferromagnetic condensate has non-vanishing value at high baryon density due to the tensor-type four-point interaction between quarks.