Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fermionic renormalization group flow into phases with broken discrete
  symmetry: charge-density wave mean-field model   We generalize the application of the functional renormalization group (fRG)
method for the fermionic flow into the symmetry-broken phase to finite
temperatures. We apply the scheme to the case of a broken discrete symmetry:
the charge-density wave (CDW) mean-field model at half filling. We show how an
arbitrarily small initial CDW order parameter starts to grow at the CDW
instability and how it flows to the correct final value, suppressing the
divergence of the effective interaction in the fRG flow. The effective
interaction peaks at the instability and saturates at low energy scales or
temperatures. The relation to the mean-field treatment, differences compared to
the flow for a broken continuous symmetry, and the prospects of the new method
are discussed.

31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs