omg blueprint for trapped ion quantum computing with metastable states
Open accessAbstract
Quantum computers, much like their classical counterparts, will likely benefit from flexible qubit encodings that can be matched to different tasks. For trapped ion quantum processors, a common way to access multiple encodings is to use multiple, co-trapped atomic species. Here, we outline an alternative approach that allows flexible encoding capabilities in single-species systems through the use of long-lived metastable states as an effective, programmable second species. We describe the set of additional trapped ion primitives needed to enable this protocol and show that they are compatible with large-scale systems that are already in operation.
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The 1,762-nm laser enables a ternary (three-outcome) measurement to detect leakage population without the use of ancillas or 2Q gates.
“Furthermore, the 1,762-nm laser is used to protect neighbouring qubits from measurement crosstalk errors (Extended Data Fig. 1b) and enables a ternary (three-outcome) measurement to detect leakage population (Extended Data Fig. 1c) without the use of ancillas or 2Q gates79–81.”
From A 98-qubit trapped-ion quantum computer with all-to-all connectivity (2026) · cites this paper as [81]
Cites
Experimental issues in coherent quantum-state manipulation of trapped atomic ions
Wineland, D. J., Monroe, C., Itano, W. M., Leibfried, D., King, B. E., & Meekhof, D. M. (1998) · Journal of Research of the National Institute of Standards and Technology · doi:10.6028/jres.103.019 · Cited by 1,497 · see citing works
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High-fidelity gates and mid-circuit erasure conversion in an atomic qubit
Ma, S., Liu, G., Peng, P., Zhang, B., Jandura, S., Claes, J., Burgers, A. P., Pupillo, G., Puri, S., & Thompson, J. D. (2023) · Nature · doi:10.1038/s41586-023-06438-1 · Cited by 228 · see citing works
Midcircuit Operations Using the <i>omg</i> Architecture in Neutral Atom Arrays
Lis, J. W., Senoo, A., McGrew, W. F., Rönchen, F., Jenkins, A., & Kaufman, A. M. (2023) · Physical Review X · doi:10.1103/physrevx.13.041035 · Cited by 113 · see citing works
An, F. A., Ransford, A., Schaffer, A., Sletten, L. R., Gaebler, J., Hostetter, J., & Vittorini, G. (2022) · Physical Review Letters · doi:10.1103/physrevlett.129.130501 · Cited by 59 · see citing works
Self-citationBoguslawski, M. J., Wall, Z. J., Vizvary, S. R., Moore, I. D., Bareian, M., Allcock, D. T. C., Wineland, D. J., Hudson, E. R., & Campbell, W. C. (2023) · Physical Review Letters · doi:10.1103/physrevlett.131.063001 · Cited by 15 · see citing works
Self-citationA 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
“1c) without the use of ancillas or 2Q gates 79–81 .”
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- Authors
- Allcock, D. T. C., Campbell, W. C., Chiaverini, J., Chuang, I. L., Hudson, E. R., Moore, I. D., Ransford, A., Roman, C., Sage, J. M., & Wineland, D. J.
- Affiliations
- University of Oregon (US)
- University of California, Los Angeles (US)
- MIT Lincoln Laboratory (US)
- MIT-Harvard Center for Ultracold Atoms (US)
- Corresponding author
- Campbell, W. C.
- ORCID
- Venue
- Applied Physics Letters
- Publisher
- AIP Publishing
- Published
- 2021-11-22
- Volume
- 119
- Issue
- 21
- ISSN
- 0003-6951 (ISSN-L)
- 1077-3118
- OpenAlex
- W3216098461
- Cited by
- 87
- References
- 1
- Citations by year
- 2026: 20 · 2025: 26 · 2024: 20 · 2023: 13 · 2022: 8
- FWCI
- 3.62
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Applied Physics Letters (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc-sa)
- arXiv (Cornell University) (cc-by)
- Funders
- United States Army Research Office (W911NF-20-1-0037)
- NSF Center for Ultracold Atoms
- National Science Foundation (2016244, OMA-2016245, PHY-1912555)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Computing Algorithms and Architecture
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Cold Atom Physics and Bose-Einstein Condensates
- Keywords
- trapped-ion quantum computing, metastable states, qubit encoding
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