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arXiv · hep-ph/9910470

Ferromagnetism of quark liquid

Toshitaka Tatsumi
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Abstract

Usually it is believed that the Hartree-Fock state of quark matter is a Fermi gas state with no polarisation of spins. We examine the possibility of the polarised quark liquid interacting with the one-gluon-exchange interaction. It is suggested that the Hartree-Fock state shows a spontaneous magnetic instability at low densities through the same mechanism as the appearance of ferromagnetism in electron gas. Metastability of the polarised quark liquid is also discussed.

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Toshitaka Tatsumi. 1999-10-25. Ferromagnetism of quark liquid. https://doi.org/10.1016/s0370-2693(00)00927-8

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