Spontaneous magnetization in high-density quark matter

TL;DR

This paper demonstrates that high-density quark matter can spontaneously magnetize due to quark anomalous magnetic moments, potentially explaining strong magnetic fields in compact stars.

Contribution

It introduces a mechanism for spontaneous magnetization in high-density quark matter via tensor interactions and quark magnetic moments, a novel insight into stellar magnetic phenomena.

Findings

Spontaneous magnetization occurs in high-density quark matter.

Spin polarized condensates form at high baryon density.

Implications for strong magnetic fields in compact stars are discussed.

Abstract

It is shown that the spontaneous magnetization occurs due to the anomalous magnetic moments of quarks in the high-density quark matter under the tensor-type four-point interaction. The spin polarized condensate for each flavor of quark appears at high baryon density, which leads to the spontaneous magnetization due to the anomalous magnetic moments of quarks. The implications to the strong magnetic field in the compact stars is discussed.