Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Towards Rydberg quantum logic with trapped ions   We demonstrate the excitation of ions to the Rydberg state $22F$ by vacuum
ultraviolet radiation at a wavelength of $123\,\text{nm}$ combined with the
coherent manipulation of the optical qubit transition in $^{40}\text{Ca}^+$.
With a tightly focused beam at $729\,\text{nm}$ wavelength we coherently excite
a single ion from a linear string into the metastable $3D_{5/2}$ state before a
VUV pulse excites it to the Rydberg state. In combination with ion shuttling in
the trap, we extend this approach to the addressed excitation of multiple ions.
The coherent initialization as well as the addressed Rydberg excitation are key
prerequisites for more complex applications of Rydberg ions in quantum
simulation or quantum information processing.

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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
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The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex