Reprogrammable and high-precision holographic optical addressing of trapped ions for scalable quantum control

Author:

Shih Chung-YouORCID,Motlakunta SainathORCID,Kotibhaskar Nikhil,Sajjan Manas,Hablützel Roland,Islam RajibulORCID

Abstract

AbstractHigh-precision, individually programmable manipulation of quantum particles is crucial for scaling up quantum information processing (QIP) systems such as laser-cooled trapped-ions. However, restricting undesirable “crosstalk” in optical manipulation of ion qubits is fundamentally challenging due to micron-level inter-ion separation. Further, inhomogeneous ion spacing and high susceptibility to aberrations at UV wavelengths suitable for most ion-species pose severe challenges. Here, we demonstrate high-precision individual addressing (λ = 369.5 nm) of Yb+ using a reprogrammable Fourier hologram. The precision is achieved through in-situ aberration characterization via the trapped ion, and compensating (to λ/20) with the hologram. Using an iterative Fourier transformation algorithm (IFTA), we demonstrate an ultra-low (<10−4) intensity crosstalk error in creating arbitrary pair-wise addressing profiles, suitable for over fifty ions. This scheme relies on standard commercial hardware, can be readily extended to over a hundred ions, and adapted to other ion-species and quantum platforms.

Funder

United States Department of Defense | United States Army | U.S. Army Research, Development and Engineering Command | Army Research Office

Canada First Research Excellence Fund

University of Waterloo

Innovation, Science and Economic Development Canada

Gouvernement du Canada | Natural Sciences and Engineering Research Council of Canada

Publisher

Springer Science and Business Media LLC

Subject

Computational Theory and Mathematics,Computer Networks and Communications,Statistical and Nonlinear Physics,Computer Science (miscellaneous)

Reference38 articles.

1. Monroe, C. et al. Programmable quantum simulations of spin systems with trapped ions. Preprint at http://arxiv.org/abs/1912.07845 (2019).

2. Brown, K. R., Kim, J. & Monroe, C. Co-designing a scalable quantum computer with trapped atomic ions. npj Quant. Inf. 2, 1–10 (2016).

3. Egan, L. et al. Fault-tolerant operation of a quantum error-correction code. Preprint at http://arxiv.org/abs/2009.11482 (2020).

4. Friis, N. et al. Observation of entangled states of a fully controlled 20-qubit system. Phys. Rev. X 8, 021012 (2018).

5. Nam, Y. et al. Ground-state energy estimation of the water molecule on a trapped-ion quantum computer. npj Quant. Inf. 6, 1–6 (2020).

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3