Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A New Disorder Driven Roughening Transition of CDW's and Flux Line
  Lattices   We study the competition between pinning of a charge density wave (CDW) by
random distributed impurities and a periodic potential of the underlying
crystal lattice. In d=3 dimensions, we find for commensurate phases of order
p>p_c\approx 6/\pi a disorder driven continuous roughening transition from a
'flat' phase with translational long range order to a 'rough' glassy phase with
quasi long range order. Critical exponents are calculated in a double expansion
in \mu=p^2/p_c^2-1 and \epsilon=4-d and fulfill the scaling relations of random
field models. Implications for flux line lattices in high temperature
superconductors are briefly discussed.

24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin