Measurement of the Charge Transfer Efficiency of Electrons Clocked on Superfluid Helium

Details Measurement of the Charge Transfer Efficiency of Electrons Clocked on Superfluid Helium Measurement of the Charge Transfer Efficiency of Electrons Clocked on Superfluid Helium

2006-02-09

arxiv.org/abs/cond-mat/0602228v2

Physics

Condensed Matter

Other Condensed Matter

8 pages, 3 figures (corrected typos and added details on experimental procedure), submitted to APL

Scientific paper

10.1063/1.2213009

Electrons floating on the surface of liquid helium are possible qubits for quantum information processing. Varying electric potentials do not modify spin states, which allows their transport on helium using a charge-coupled device (CCD)-like array of underlying gates. This scheme depends upon efficient inter-gate electron transfer and on the absence of electron traps. We will present a measurement of the charge transfer efficiency (CTE) of electrons clocked back and forth above a short CCD-like structure. The CTE obtained at low clocking frequencies is 0.999 with an electron density of about 4 electrons per square micrometer. We find no evidence for deep electron trapping.

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