Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interaction of moving discrete breathers with vacancies   In this paper a Frenkel--Kontorova model with a nonlinear interaction
potential is used to describe a vacancy defect in a crystal. According to
recent numerical results [Cuevas et al, Phys. Lett. A 315, 364 (2003)] the
vacancy can migrate when it interacts with a moving breather. We study more
thoroughly the phenomenology caused by the interaction of moving breathers with
a single vacancy and also with double vacancies. We show that vacancy mobility
is strongly correlated with the existence and stability properties of
stationary breathers centered at the particles adjacent to the vacancy, which
we will now call vacancy breathers.

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The categories of this paper are: physics
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The categories of this paper are: quant-ph
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The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
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The categories of this paper are: cs
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
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The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an