Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of impurity pinning on conduction and specific heat in the
  Luttinger liquid   We study theoretically two effects related to impurity depinning that are
common for 1D Luttinger liquid (LL) and linear-chain CDW conductors. First, we
consider the electron transport through a single impurity in a 1D conducting
channel and study a new regime of conduction related to LL sliding at voltage
above a threshold one. The DC current in this regime is accompanied by
oscillations with frequency $f =I/e$. This resembles the CDW depinning in
linear-chain conductors, the Josephson effect, and the Coulomb blockade.
Second, we found that strong pinning of the LL by impurities leads to a
magnetic field dependence of the low-temperature specific heat similar to that
observed experimentally in CDW compounds. We interpret this in favor of
possibility of formation of the LL in linear-chain compounds.

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The categories of this paper are: mtrl-th
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The categories of this paper are: eess
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The categories of this paper are: plasm-ph
14
The categories of this paper are: math-ph
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The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
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The categories of this paper are: supr-con
2
The categories of this paper are: math
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
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The categories of this paper are: solv-int
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The categories of this paper are: q-alg