Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement Generation Using Discrete Solitons in Coulomb Crystals   Laser cooled and trapped ions can crystallize and feature discrete solitons,
that are nonlinear, topologically-protected configurations of the Coulomb
crystal. Such solitons, as their continuum counterparts, can move within the
crystal, while their discreteness leads to the existence of a gap-separated,
spatially-localized motional mode of oscillation above the spectrum. Suggesting
that these unique properties of discrete solitons can be used for generating
entanglement between different sites of the crystal, we study a detailed
proposal in the context of state-of-the-art experimental techniques. We analyze
the interaction of periodically-driven planar ion crystals with optical forces,
revealing the effects of micromotion in radio-frequency traps inherent to such
structures, as opposed to linear ion chains. The proposed method requires
Doppler cooling of the crystal and sideband cooling of the soliton's localized
modes alone. Since the gap separation of the latter is nearly independent of
the crystal size, this approach could be particularly useful for producing
entanglement and studying system-environment interactions in large, two- and
possibly three-dimensional systems.

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The categories of this paper are: physics
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
17
The categories of this paper are: q-fin
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
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The categories of this paper are: gr-qc
16
The categories of this paper are: stat
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The categories of this paper are: nlin
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The categories of this paper are: math
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The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex