Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Critical phenomena near the antiferromagnetic quantum critical point of
  Heavy-Fermions   We present a study of the critical phenomena around the quantum critical
point in heavy-fermion systems. In the framework of the S=1/2 Kondo lattice
model, we introduce an extended decoupling scheme of the Kondo interaction
which allows one to treat the spin fluctuations and the Kondo effect on an
equal footing. The calculations, developed in a self-consistent one-loop
approximation, lead to the formation of a damped collective mode with a dynamic
exponent z=2 in the case of an antiferromagnetic instability. The system
displays a quantum-classical crossover at finite temperature depending how the
energy of the mode, on the scale of the magnetic correlation length, compares
to k_B T. The low temperature behavior, in the different regimes separated by
the crossover temperatures, is then discussed for both 2- and 3-dimensional
systems.

26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex