Resource overheads and attainable rates for trapped-ion lattice surgery
Loading...
Access rights
openAccess
CC BY
CC BY
publishedVersion
URL
Journal Title
Journal ISSN
Volume Title
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
Date
Department
Major/Subject
Mcode
Degree programme
Language
en
Pages
14
Series
Physical Review Research, Volume 7, issue 2, pp. 1-14
Abstract
We present estimates for the number of ions needed to implement fault-tolerant lattice surgery between spatially separated trapped-ion surface codes. Additionally, we determine attainable lattice surgery rates given a number of dedicated "communication ions"per logical qubit. Because our analysis depends heavily on the rate that syndrome extraction cycles take place, we survey the state-of the art and propose three possible cycle times between 10 and 1000μs that we could reasonably see realized provided certain technological milestones are met. Consequently, our numerical results indicate that hundreds of resource ions will be needed for lattice surgery in the slowest case, while close to a hundred thousand will be needed in the fastest case. The main factor contributing to these prohibitive estimates is the limited rate that ions can be coupled across traps. Our results indicate an urgent need for optical coupling to improve by one or more orders of magnitude for trapped-ion quantum computers to scale.Description
Publisher Copyright: © 2025 authors. Published by the American Physical Society.
Keywords
Other note
Citation
Leone, H, Le, T, Srikara, S & Devitt, S 2025, 'Resource overheads and attainable rates for trapped-ion lattice surgery', Physical Review Research, vol. 7, no. 2, 023088, pp. 1-14. https://doi.org/10.1103/PhysRevResearch.7.023088