Characterization of Fast Ion Transport via Position-Dependent Optical Deshelving
Abstract
Ion transport is an essential operation in some models of quantum information processing, where fast ion shuttling with minimal motional excitation is necessary for efficient, high-fidelity quantum logic. While fast and cold ion shuttling has been demonstrated, the dynamics and specific trajectory of an ion during diabatic transport have not been studied in detail. Here we describe a position-dependent optical deshelving technique useful for sampling an ion's position throughout its trajectory, and we demonstrate the technique on fast linear transport of a ion in a surface-electrode ion trap. At high speed, the trap's electrode filters strongly distort the transport potential waveform. With this technique, we observe deviations from the intended constant-velocity (100 m/s) transport: we measure an average speed of 83(2) m/s and a peak speed of 251(6) m/s over a distance of 120 m
Keywords
Cite
@article{arxiv.2301.05279,
title = {Characterization of Fast Ion Transport via Position-Dependent Optical Deshelving},
author = {Craig R. Clark and Creston D. Herold and J. True Merrill and Holly N. Tinkey and Wade Rellergert and Robert Clark and Roger Brown and Wesley D. Robertson and Curtis Volin and Kara Maller and Chris Shappert and Brian J. McMahon and Brian C. Sawyer and Kenton R. Brown},
journal= {arXiv preprint arXiv:2301.05279},
year = {2023}
}