Reliable transport through a microfabricated X -junction surface-electrode ion trap
Open accessAbstract
We report the design, fabrication and characterization of a microfabricated surface-electrode ion trap that supports controlled transport through the two-dimensional intersection of linear trapping zones arranged in a 90° cross. The trap is fabricated with very large scalable integration techniques which are compatible with scaling to a large quantum information processor. The shape of the radio-frequency electrodes is optimized with a genetic algorithm to reduce axial pseudopotential barriers and minimize ion heating during transport. Seventy-eight independent dc control electrodes enable fine control of the trapping potentials. We demonstrate reliable ion transport between junction legs and determine the rate of ion loss due to transport. Doppler-cooled ions survive more than 10 5 round-trip transits between junction legs without loss and more than 65 consecutive round trips without laser cooling.
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Helios uses a four-way 'X' junction to connect memory regions to quantum logic regions without increasing electrical control or device fabrication complexity.
“Second, Helios uses a four-way ‘X’ junction10,11,29–35 to connect memory regions to quantum logic regions without increasing electrical control or device fabrication complexity.”
From A 98-qubit trapped-ion quantum computer with all-to-all connectivity (2026) · cites this paper as [32]
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Quantum simulations with trapped ions
Blatt, R., & Roos, C. F. (2012) · Nature Physics · doi:10.1038/nphys2252 · Cited by 1,629 · see citing works
Toward scalable ion traps for quantum information processing
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Self-citationNear-ground-state transport of trapped-ion qubits through a multidimensional array
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Trapped-ion quantum computing: Progress and challenges
Bruzewicz, C. D., Chiaverini, J., McConnell, R., & Sage, J. M. (2019) · Applied Physics Reviews · doi:10.1063/1.5088164 · Cited by 1,483 · see citing works
Ion-trap measurements of electric-field noise near surfaces
Brownnutt, M., Kumph, M., Rabl, P., & Blatt, R. (2015) · Reviews of Modern Physics · doi:10.1103/revmodphys.87.1419 · Cited by 413 · see citing works
Realization of Real-Time Fault-Tolerant Quantum Error Correction
Ryan-Anderson, C., Bohnet, J. G., Lee, K., Gresh, D., Hankin, A., Gaebler, J. P., Francois, D., Chernoguzov, A., Lucchetti, D., Brown, N. C., et al. (2021) · Physical Review X · doi:10.1103/physrevx.11.041058 · Cited by 306 · see citing works
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Self-citationTransport of Multispecies Ion Crystals through a Junction in a Radio-Frequency Paul Trap
Burton, W. C., Estey, B., Hoffman, I. M., Perry, A. R., Volin, C., & Price, G. (2023) · Physical Review Letters · doi:10.1103/physrevlett.130.173202 · Cited by 29 · see citing works
Self-citationOptimization and implementation of a surface-electrode ion trap junction
Zhang, C., Mehta, K. K., & Home, J. P. (2022) · New Journal of Physics · doi:10.1088/1367-2630/ac7db6 · Cited by 10 · see citing works
A 98-qubit trapped-ion quantum computer with all-to-all connectivity
Ransford, A., Allman, M. S., Arkinstall, J., Campora, J. P., Cooper, S. F., Delaney, R. D., Dreiling, J. M., Estey, B., Figgatt, C., Hall, A., et al. (2026) · Nature · doi:10.1038/s41586-026-10676-4 · Cited by 16 · see citing works
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- Authors
- Wright, K., Amini, J. M., Faircloth, D. L., Volin, C., Charles Doret, S., Hayden, H., Pai, C.-S., Landgren, D. W., Denison, D., Killian, T., Slusher, R. E., & Harter, A. W.
- Affiliations
- Georgia Tech Research Institute (US)
- Corresponding author
- Amini, Jason M
- ORCID
- Wright, Kenneth
- Venue
- New Journal of Physics
- Publisher
- IOP Publishing
- Published
- 2013-03-04
- Volume
- 15
- Issue
- 3
- Pages
- 033004
- ISSN
- 1367-2630 (ISSN-L)
- OpenAlex
- W2169738367
- Cited by
- 87
- References
- 4
- Citations by year
- 2026: 5 · 2025: 4 · 2024: 4 · 2023: 6 · 2022: 5 · 2021: 6 · 2020: 8 · 2019: 7 · 2018: 3 · 2017: 9 · 2016: 5 · 2015: 11 · 2014: 9 · 2013: 4 · 2012: 1
- FWCI
- 10.69
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- New Journal of Physics (publishedVersion, cc-by-nc-sa)
- arXiv (Cornell University) (submittedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
- arXiv (Cornell University)
- Funders
- Research Institute, Georgia Institute of Technology
- Office of the Director of National Intelligence
- Intelligence Advanced Research Projects Activity
- Army Research Office
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Cold Atom Physics and Bose-Einstein Condensates
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
- Keywords
- surface-electrode ion trap, X-junctions, microfabricated ion traps, ion transport, ion heating, Doppler cooling, ion loss, quantum information processors
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