The Roberge-Weiss phase transition and its endpoint

Hiroaki Kouno, Yuji Sakai, Kouji Kashiwa, Masanobu Yahiro

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57 Citations (Scopus)


The Roberge-Weiss (RW) phase transition in the imaginary chemical potential region is analyzed by the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model. In the RW phase transition, the charge-conjugation symmetry is spontaneously broken, while the extended symmetry (the RW periodicity) is preserved. The RW transition is of second order at the endpoint. At the zero chemical potential, a crossover deconfinement transition appears as a remnant of the second-order RW phase transition at the endpoint, while the charge-conjugation symmetry is always preserved.

Original languageEnglish
Article number115010
JournalJournal of Physics G: Nuclear and Particle Physics
Issue number11
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics


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