Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-color QCD at imaginary chemical potential and its impact on real
  chemical potential   We study properties of two-color QCD at imaginary chemical potential ($\mu$)
from the viewpoint of the Roberge-Weiss (RW) periodicity, the charge
conjugation and the pseudo-reality. At $\mu=\pm i\pi T/2$, where $T$ is
temperature, the system is symmetric under the combination of the charge
conjugation ${\cal C}$ and the ${\mathbb Z}_{2}$ transformation. The symmetry,
called ${\cal C} {\mathbb Z}_{2}$ symmetry, is preserved at lower $T$ but
broken at higher $T$. The Polyakov-loop extended Nambu--Jona-Lasinio (PNJL)
model has the same properties as two-color QCD for ${\cal C} {\mathbb Z}_{2}$
symmetry and the pseudo-reality. The nontrivial correlation between the chiral
restoration and the deconfinement are investigated by introducing the
entanglement vertex in the PNJL model. The order of ${\cal C} {\mathbb Z}_{2}$
symmetry breaking at the RW endpoint is second-order when the correlation is
weak, but becomes first-order when the correlation is strong. We also
investigate the impact of the correlation on the phase diagram at real $\mu$.

34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn