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Ferromagnetism of quark liquid

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arxiv hep-ph/9910470 v1 pith:KTQURUAZ submitted 1999-10-25 hep-ph astro-phnucl-th

classification hep-phastro-phnucl-th
keywords quarkliquidstateferromagnetismhartree-fockpolarisedappearancebelieved
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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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Cited by 1 Pith paper

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  1. Critical endpoint and universality class of neutron $^3P_2$ superfluids in neutron stars

    nucl-th 2019-08 conditional novelty 5.0 of 10

    The critical endpoint between two nematic phases of neutron 3P2 superfluids shows critical exponents (α≈0.6, β≈0.4, γ≈0.5, δ≈2.3) that the authors interpret as evidence of a new universality class.

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