Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hamiltonian Approach to QCD: The effective potential of the Polyakov
  loop   The effective potential of the order parameter for confinement is calculated
within the Hamiltonian approach to Yang--Mills theory. Compactifying one
spatial dimension and using a background gauge fixing this potential is
obtained by minimizing the energy density for a given background field. Using
Gaussian type trial wave functionals I establish an analytic relation between
the propagators in the background gauge at finite temperature and the
corresponding zero temperature propagators in Coulomb gauge. In the simplest
truncation, neglecting the ghost and using the ultraviolet form of the gluon
energy one recovers the Weiss potential. From the fully non-perturbative
potential (with the ghost included) one extracts a critical temperature of the
deconfinement phase transition of 270 MeV for the gauge group SU(2).

1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math