Y. Tsue, J. da Providencia, C. Providencia, M. Yamamura, H. Bohr
It is indicated that there is a possibility of spin polarization in the quark matter at high density due to the tensor-type four-point interaction between quarks. The realized phase is determined by the comparison of pressure of quark spin polarized phase with that of the two-flavor color superconducting phase which may appear in high density quark matter. It is shown that the quark spin polarized phase is realized at rather high density, while the two-flavor color superconducting phase is realized at a lower density region.
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http://arxiv.org/abs/1211.6214
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