Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Helical Luttinger liquid in topological insulator nanowires   We derive and analyze the effective low-energy theory for interacting
electrons in a cylindrical nanowire made of a strong topological insulator.
Three different approaches provide a consistent picture for the band structure,
where surface states forming inside the bulk gap correspond to one-dimensional
bands indexed by total angular momentum. When a half-integer magnetic flux
pierces the nanowire, we find a strongly correlated helical Luttinger liquid
topologically protected against weak disorder. We describe how transport
experiments can detect this state.

31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio