Polyakov loop extended Nambu-Jona-Lasinio model with imaginary chemical potential

Yuji Sakai, Kouji Kashiwa, Hiroaki Kouno, Masanobu Yahiro

Research output: Contribution to journalArticle

100 Citations (Scopus)

Abstract

The Polyakov loop extended Nambu-Jona-Lasinio (PNJL) model with imaginary chemical potential is studied. The model possesses the extended Z3 symmetry that QCD does. Quantities invariant under the extended Z3 symmetry, such as the partition function, the chiral condensate, and the modified Polyakov loop, have Roberge-Weiss periodicity. The phase diagram of confinement/deconfinement transition derived with the PNJL model is consistent with the Roberge-Weiss prediction on it and the results of lattice QCD. The phase diagram of chiral transition is also presented by the PNJL model.

Original languageEnglish
Article number051901
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume77
Issue number5
DOIs
Publication statusPublished - Mar 7 2008

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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