Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effective theory of incompressible quantum Hall liquid crystals   I propose an effective theory of zero-temperature phases of the quantum Hall
stipes: a smectic phase where the stripes are static and a novel quantum
nematic phase where the positional order is destroyed by quantum fluctuations.
The nematic is viewed as a Bose condensate of dislocations whose interactions
are mediated by a U(1) gauge field. Collective mode spectrum and the dynamical
structure factor in the two phases are calculated.

26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org