Focusing of quantum gate interactions using dynamical decoupling

• DOI: 10.48550/arxiv.2309.02125
• Publication Date: 2023-01-01
• Authors: M. C. Smith; A. D. Leu; Mario F. Gely; David Lucas
• Keywords: Decoupling (probability)

In 1995, Cirac and Zoller proposed the first concrete implementation of a small-scale quantum computer, using laser beams focused to micron spot sizes address individual trapped ions in linear crystal. Here we propose method focus entangling gate interactions, but driven by microwave fields, micron-sized zones, corresponding $10^{-5}$ wavelengths. We demonstrate ability suppress spin-dependent force single ion, find required interaction introduces $3.7(4)\times 10^{-4}$ error per emulated single-qubit benchmarking sequence. model scheme for 17-qubit ion crystal, that any pair should be addressable with an average crosstalk $\sim 10^{-5}$.