Optimized focusing ion optics for an ultracold deterministic single ion source targeting nm resolution

TL;DR

This paper introduces a novel deterministic single ion source with optimized ion optics, capable of delivering ions with nanometer resolution, promising advancements in quantum computing and nano-electronics.

Contribution

It presents a new ion source design and specialized ion optics, demonstrating through simulations that nanometer resolution is achievable for deterministic ion implantation.

Findings

Numerical simulations show nm resolution is feasible.

Optimized ion optics reduce velocity and position fluctuations.

The system is suitable for quantum computing and nano-electronics applications.

Abstract

Using a segmented ion trap with mK laser-cooled ions we have realised a novel single ion source which can deterministically deliver a wide range of ion species, isotopes or ionic molecules [Schnitzler et al., Phys. Rev. Lett. 102, 070501 (2009)]. Experimental data is discussed in detail and compared with numerical simulations of ion trajectories. For the novel ion source we investigate numerically the influence of various extraction parameters on fluctuations in velocity and position of the beam. We present specialized ion optics and show from numerical simulations that nm resolution is achievable. The Paul trap, which is used as a single ion source, together with the presented ion optics, constitutes a promising candidate for a deterministic ion implantation method for applications in solid state quantum computing or classical nano-electronic devices.