Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the relation of quark confinement and chiral symmetry breaking   We study the phase diagram of QCD with the help of order parameters for
chiral symmetry breaking and quark confinement. We also introduce a new order
parameter for the confinement phase transition, which is related to the quark
density. It is easily accessible by different theoretical approaches, such as
functional approaches or lattice simulations. Its relation to the Polyakov loop
expectation value is discussed and the QCD phase diagram is analysed. Our
results suggest a close relation between the chiral and the confinement phase
transition.

11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga