Two-Dimensional Arrays of RF Ion Traps with Addressable Interactions

TL;DR

This paper explores 2D arrays of RF ion traps with adjustable interactions, demonstrating potential for quantum information processing through simulations and initial experiments with dust particles.

Contribution

It introduces a novel design of addressable 2D RF ion trap arrays with tunable interactions, combining simulations and experimental validation.

Findings

Simulations show effective control of ion interactions via RF electrode adjustments.

Printed circuit board trap arrays successfully trap dust particles for initial testing.

Adjustable RF electrodes enable merging traps into linear configurations.

Abstract

We describe the advantages of 2-dimensional, addressable arrays of spherical Paul traps. They would provide for the ability to address and tailor the interaction strengths of trapped objects in 2D and could establish a valuable new tool for quantum information processing. Simulations of trapping ions are compared to first tests using printed circuit board trap arrays loaded with dust particles. Pair-wise interactions in the array are addressed by means of an adjustable radio-frequency (RF) electrode shared between trapping sites. By attenuating this RF electrode potential, neighboring pairs of trapped objects have their interaction strength increase and are moved closer to one another. In the limit of the adjustable electrode being held at RF ground, the two formerly spherical traps are merged into one linear Paul trap.