Bose-Einstein condensation in linear sigma model at Hartree and large N approximation

Abstract

The BEC of charged pions is investigated in the framework of O(4) linear sigma model. By using Cornwall-Jackiw-Tomboulis formalism, we have derived the gap equations for the effective masses of the mesons at finite temperature and finite isospin density. The BEC is discussed in chiral limit and non-chiral limit at Hartree approximation and also at large N approximation.

11 pages, 9 figures

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Cited by in corpus (6)

• Three-flavor Nambu--Jona-Lasinio model at finite isospin chemical potential
• Bose-Einstein condensation and Silver Blaze property from the two-loop $\Phi$-derivable approximation
• Functional renormalization group at finite density and Bose condensation
• BCS-BEC crossover in relativistic Fermi systems
• On the symmetry improved CJT formalism in the $O(4)$ linear sigma model
• Quarkyonic picture of isospin QCD