Bose-Einstein condensation and chiral phase transition in linear sigma model

Details Bose-Einstein condensation and chiral phase transition in linear sigma model Bose-Einstein condensation and chiral phase transition in linear sigma model

2005-01-28

arxiv.org/abs/hep-th/0501226v1

J.Phys. G31 (2005) 459-470

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, 7 figures

Scientific paper

10.1088/0954-3899/31/5/015

With the linear sigma model, we have studied Bose-Einstein condensation and the chiral phase transition in the chiral limit for an interacting pion system. A $\mu-T$ phase diagram including these two phenomena is presented. It is found that the phase plane has been divided into three areas: the Bose-Einstein condensation area, the chiral symmetry broken phase area and the chiral symmetry restored phase area. Bose-Einstein condensation can happen either from the chiral symmetry broken phase or from the restored phase. We show that the onset of the chiral phase transition is restricted in the area where there is no Bose-Einstein condensation.

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