Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Signal and Charge Transfer Efficiency of Few Electrons Clocked on
  Microscopic Superfluid Helium Channels   Electrons floating on the surface of liquid helium are possible spin-qubits
for quantum information processing. Varying electric potentials are not
expected to modify spin states, which allows their transport on helium using a
charge-coupled device (CCD)-like array of underlying gates. This approach
depends upon efficient inter-gate transfer of individual electrons.
Measurements are presented here of the charge transfer efficiency (CTE) of few
electrons clocked back and forth above a short microscopic CCD-like structure.
A charge transfer efficiency of 0.99999992 is obtained for a clocking frequency
of 800 kHz.

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The categories of this paper are: q-bio
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The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
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The categories of this paper are: econ
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The categories of this paper are: solv-int
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The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
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The categories of this paper are: physics
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom