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.
Ferromagnetism of quark liquid
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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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Critical endpoint and universality class of neutron $^3P_2$ superfluids in neutron stars
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.