Optimum electrode configurations for fast ion separation in microfabricated surface ion traps

TL;DR

This paper explores optimal electrode configurations in surface ion traps to maximize the speed of ion separation and recombination, crucial for efficient quantum information processing.

Contribution

It introduces optimized electrode arrangements for faster ion separation and recombination in surface ion traps, enhancing adiabatic shuttling performance.

Findings

Optimized electrode configurations increase separation speed.

Analysis of ion dynamics during separation process.

Guidelines for adiabatic ion shuttling in surface traps.

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.