Spin-polarized versus chiral condensate in quark matter at finite temperature and density

Hiroaki Matsuoka, Yasuhiko Tsue, Joao da Providencia, Constanca Providencia, Masatoshi Yamamura, Henrik Bohr

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It is shown that the spin-polarized condensate appears in quark matter at high baryon density and low temperature due to the tensor-type four-point interaction in the Nambu-Jona-Lasiniotype model as a low-energy effective theory of quantum chromodynamics. It is indicated within this low-energy effective model that the chiral symmetry is broken again by the spin-polarized condensate on increasing the quark number density, while chiral symmetry restoration occurs, in which the chiral condensate disappears at a certain density.
Original languageEnglish
Article number053D02
JournalProgress of Theoretical and Experimental Physics
Issue number5
Number of pages23
Publication statusPublished - 2016

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