TY - JOUR
T1 - QCD phase diagram at imaginary baryon and isospin chemical potentials
AU - Sakai, Yuji
AU - Kouno, Hiroaki
AU - Yahiro, Masanobu
PY - 2010/10
Y1 - 2010/10
N2 - We explore the phase diagram of two-flavor quantum chromodynamics (QCD) at imaginary values of baryon and isospin chemical potentials, μB and μiso, analyzing the thermodynamic potential of QCD analytically and that of the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model numerically. QCD has no pion condensation at imaginary μB and μiso, and therefore has discrete symmetries that are not present at real μB and μiso. The PNJL model possesses all the discrete symmetries. It can reproduce qualitatively lattice QCD data presented very recently.
AB - We explore the phase diagram of two-flavor quantum chromodynamics (QCD) at imaginary values of baryon and isospin chemical potentials, μB and μiso, analyzing the thermodynamic potential of QCD analytically and that of the Polyakov-loop extended Nambu-Jona-Lasinio (PNJL) model numerically. QCD has no pion condensation at imaginary μB and μiso, and therefore has discrete symmetries that are not present at real μB and μiso. The PNJL model possesses all the discrete symmetries. It can reproduce qualitatively lattice QCD data presented very recently.
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U2 - 10.1088/0954-3899/37/10/105007
DO - 10.1088/0954-3899/37/10/105007
M3 - Article
AN - SCOPUS:78149385782
SN - 0954-3899
VL - 37
JO - Journal of Physics G: Nuclear and Particle Physics
JF - Journal of Physics G: Nuclear and Particle Physics
IS - 10
M1 - 105007
ER -