Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transient dynamics of spin-polarized injection in helical Luttinger
  liquids   We analyze the time evolution of spin-polarized electron wave packets
injected into the edge states of a two-dimensional topological insulator. In
the presence of electron interactions, the system is described as a helical
Luttinger liquid and injected electrons fractionalize. However, because of the
presence of metallic detectors, no evidences of fractionalization are encoded
in dc measurements, and in this regime the system do not show deviations from
its non-interacting behavior. Nevertheless, we show that the helical Luttinger
liquid nature emerges in the transient dynamics, where signatures of
charge/spin fractionalization can be clearly identified.

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The categories of this paper are: hep-lat
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The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
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The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin