Optimum electrode configurations for fast ion separation in microfabricated surface ion traps |
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Authors: | A H Nizamani W K Hensinger |
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Institution: | (1) Department of Physics and Astronomy, University of Sussex, Falmer, East Sussex, Brighton, BN1 9QH, UK; |
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Abstract: | For many quantum information implementations with trapped ions, effective shuttling operations are important. Here, we discuss
the efficient separation and recombination of ions in surface ion trap geometries. The maximum speed of separation and recombination
of trapped ions for adiabatic shuttling operations depends on the secular frequencies the trapped ion experiences in the process.
Higher secular frequencies during the transportation processes can be achieved by optimising trap geometries. We show how
two different arrangements of segmented static potential electrodes in surface ion traps can be optimised for fast ion separation
or recombination processes. We also solve the equations of motion for the ion dynamics during the separation process and illustrate
important considerations that need to be taken into account to make the process adiabatic. |
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