Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Continuum quantum ferromagnets at finite temperature and the Quantum
  Hall effect   We study finite temperature ($T$) properties of the continuum quantum field
theory of systems with a ferromagnetic ground state. A scaling theory of the
$T=0$ system is discussed carefully, and its consequences for crossovers
between different finite $T$ regimes in dimensions 1, 2, and 3 are described.
The results are compared with recent NMR measurements of the magnetization of a
quantum Hall system with filling factor $\nu=1$; we predict that the relaxation
rate $1/T_1$ of this system may have a finite $T$ ``ferromagnetic coherence
peak''.

17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics