Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical effects of phonons on soliton binding in spin-Peierls systems   The role of dynamical magneto-elastic coupling in spin-Peierls chains is
investigated by numerical and analytical techniques. We show that a Heisenberg
spin chain coupled to dynamical optical phonons exhibits a transition towards a
spontaneously dimerized state in a wide range of parameter space. The low
energy excitations are characterized as solitons. No binding between solitons
occurs in the isolated spin-phonon chain and the dynamical spin structure
factor shows a broad magnon dispersion. However, elastic interchain coupling
can lead to the formation of bound states.

15
The categories of this paper are: nucl-ex
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The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph
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The categories of this paper are: stat
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
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The categories of this paper are: physics
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The categories of this paper are: cmp-lg
2
The categories of this paper are: math