Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quark/hadronic matter and dualities of QCD thermodynamics   In this letter the dualities of thermodynamics of dense quark/hadronic matter
are discussed. It is shown that chiral symmetry breaking (CSB) phenomenon is
dual to charged pion condensation (PC) phenomenon.

18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an