Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Zero mode in a strongly coupled quark gluon plasma   In connection with massless two-flavour QCD, we analyse the chiral symmetry
restoring phase transition using three distinct gluon-quark vertices and two
different assumptions about the long-range part of the quark-quark interaction.
In each case, we solve the gap equation, locate the transition temperature T_c,
and use the maximum entropy method to extract the dressed-quark spectral
function at T>T_c. Our best estimate for the chiral transition temperature is
T_c=(147 +/- 8)MeV; and the deconfinement transition is coincident. For
temperatures markedly above T_c, we find a spectral density that is consistent
with those produced using a hard thermal loop expansion, exhibiting both a
normal and plasmino mode. On a domain T\in[T_c,T_s], with T_s approximately
1.5T_c, however, with each of the six kernels we considered, the spectral
function contains a significant additional feature. Namely, it displays a third
peak, associated with a zero mode, which is essentially nonperturbative in
origin and dominates the spectral function at T=T_c. We suggest that the
existence of this mode is a signal for the formation of a strongly-coupled
quark-gluon plasma and that this strongly-interacting state of matter is likely
a distinctive feature of the QCD phase transition.

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The categories of this paper are: cmp-lg
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
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The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin