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QCD phase diagram at imaginary baryon and isospin chemical potentials
Yuji Sakai, Hiroaki Kouno, Masanobu Yahiro
We explore the phase diagram of two-flavor QCD at imaginary values of baryon and isospin chemical potentials analyzing the thermodynamic potential of QCD analytically and that of t…
Dual quark condensate in the Polyakov-loop extended Nambu--Jona-Lasinio model
Kouji Kashiwa, Hiroaki Kouno, Masanobu Yahiro
The dual quark condensate proposed recently as a new order parameter of the spontaneous breaking of the symmetry are evaluated by the Polyakov-loop extend…
Roberge-Weiss phase transition and its endpoint
Hiroaki Kouno, Yuji Sakai, Kouji Kashiwa +1
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 trans…
Determination of QCD phase diagram from the imaginary chemical potential region
Yuji Sakai, Kouji Kashiwa, Hiroaki Kouno +2
We test the reliability of the the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model, comparing the model result with the lattice data at nonzero imaginary chemical potential.…