Phase Diagram and Pion Modes of the Neutral Nambu-Jona Lasinio Model with the Polyakov Loop

2008/01/01 by M. Ruggieri, Marco Ruggieri
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1143/ptps.174.60

published as Prog.Theor.Phys.Suppl.174:60-65,2008 · 6 pages, 3 figures. Invited talk at the YITP international symposium on ``Fundamental Problems in Hot and/or Dense QCD'', Kyoto, Japan, 3-6 Mar 2008

openalex publication_date 2008/01/01 · arxiv created 2008/05/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

I discuss recent results obtained by our group within the Nambu-Jona Lasinio model with the Polyakov loop. I focus on the two flavor version of the model, discussing the phase diagram in the µ-T plane in the case in which electrical neutrality is required. One of the results is that pion condensation is not observed in our model when a physical mass for the light quarks is considered.

Citations

• Coupling of pion condensate, chiral condensate, and Polyakov loop in an extended Nambu–Jona-Lasinio model
• Susceptibilities and speed of sound from the Polyakov-Nambu-Jona-Lasinio model
• Quark number fluctuations in a chiral model at finite baryon chemical potential
• Electrical neutrality and pion modes in the two flavor Polyakov–Nambu–Jona-Lasinio model
• 2+1flavor Polyakov–Nambu–Jona-Lasinio model at finite temperature and nonzero chemical potential