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- W2894525935 abstract "We use the Polyakov-loop extended two-flavor quark-meson model as a low-energy effective model for QCD to study 1) the possibility of inhomogeneous chiral condensates and its competition with a homogeneous pion condensate in the $mu$--$mu_I$ plane at $T=0$ and 2) the phase diagram in the $mu_I$--$T$ plane. In the $mu$--$mu_I$ plane, we find that an inhomogeneous chiral condensate only exists for pion masses lower that 37.1 MeV and does not coexist with a homogeneous pion condensate. In the $mu_I$--$T$ plane, we find that the phase transition to a Bose-condensed phase is of second order for all values of $mu_I$ and we find that there is no pion condensation for temperatures larger than approximately 187 MeV. The chiral critical line joins the critical line for pion condensation at a point, whose position depends on the Polyakov-loop potential and the sigma mass. For larger values of $mu_I$ these curves are on top of each other. The deconfinement line enters smoothly the phase with the broken $O(2)$ symmetry. We compare our results with recent lattice simulations and find overall good agreement" @default.
- W2894525935 created "2018-10-05" @default.
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- W2894525935 date "2018-09-30" @default.
- W2894525935 modified "2023-09-27" @default.
- W2894525935 title "Pion condensation and QCD phase diagram at finite isospin density" @default.
- W2894525935 cites W2804652487 @default.
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- W2894525935 hasPublicationYear "2018" @default.
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