Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Conventional description of Unconventional Coulomb-Crystal phase
  transitions in three-dimensional classical O(N) spin-ice   We study the phase transition between the high temperature Coulomb phase and
the low temperature staggered crystal phase in three dimensional classical O(N)
spin-ice model. Compared with the previously proposed CP(1) formalism on the
Coulomb-crystal transition of the classical dimer model, our description based
on constrained order parameter is more conventional, due to a fundamental
difference between the O(N) and the dimer model. A systematic epsilon and 1/N
expansion are used to study the universality class of the phase transition, and
a stable fixed point is found based on our calculations for large enough N.

25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th