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Draft:Silicon Quantum Computing

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  • Comment: Thank you for addressing my comments from earlier! I do believe that the topic may be notable, but I'm afraid the article needs a complete rewrite. A few overarching themes: (1) Please remove further promotional language throughout. For example: "SQC is a full stack technology company building both hardware and software", "The company exploits leading-edge manufacturing technology", and much of the "Technology" section. (2) Much of the text appears to be synthesized from academic papers, much of them published by Simmons. The problem with this is that, besides not demonstrating independently notability, it constitutes possible WP:OR (or insider information) as it's not clear whether this history is more widely known - see for example, "Technical achievements prior to the formation of the company". I took a look at the citation "Spectroscopy of few-electron single-crystal silicon quantum dots" and the article itself does not mention SQM at all. For now, I think the best route is just to remove such details unless there are other, non-primary sources covering the history of the company. (3) The article relies too much on primary sources. Besides the large number of academic sources, currently UNSW, SQC are key sources that are unfortunately primary. To move forward, we need some high-quality independent sources. I did some brief searching and This article could be a good starting point. Caleb Stanford (talk) 01:06, 28 March 2025 (UTC)
  • Comment: The references are not formatted correctly. Please clean them up using the citation generator to create them (e.g. URL, website, author, title, date, access-date, etc.)
    The article is written in a promotional tone: "Silicon Quantum Computing is the only company worldwide that can manufacture quantum processors with atomic precision" Please fix this.
    "Australian Research Council (ARC)" is a red link.
    Some sentences are missing citations, e.g., "Many competitor businesses pursue “top down” processes, who take already-scaled technologies looking to combine them to make a quantum computer. SQC’s approach is an example of “bottom up” quantum computation. SQC has started with naturally quantum components and processes. ". Caleb Stanford (talk) 21:13, 8 March 2025 (UTC)


Silicon Quantum Computing Pty Ltd (SQC) is a quantum computing company based in Sydney, Australia. The company develops quantum computers using precision engineered atom qubits in pure silicon, a concept originally proposed by Bruce Kane in 1998. SQC is a full stack technology company[1] aiming to deliver a utility-scale quantum computer by 2033.[1]

Silicon Quantum Computing was founded in May 2017, by 2018 Australian of the Year, Michelle Simmons and is supported by the Commonwealth Bank, Telstra, the Commonwealth Government, the Government of NSW and the University of New South Wales.[2]

In 2012 Simmons demonstrated a single atom transistor,[3] the world’s smallest transistor based on the ability to place a single phosphorus atom in silicon with atomic precision.[4] In 2022 SQC announced the world’s first integrated circuit manufactured with atomic precision[5] and used this device to simulate the Su-Schrieffer-Heeger model.[6]

Other notable peer-reviewed achievements include: fast (nanosecond) exchange gates,[7] high fidelity (99.95%) single shot read-out,[8] high fidelity initialisation,[9] long coherence times,[10] within a fully crystalline, low noise platform.[11]In February 2025 SQC demonstrated the world’s highest fidelity implementation of Grover’s algorithm without the need for error correction.[12]

History

[edit]

Silicon Quantum Computing was founded in May 2017 by Michelle Simmons.[13]

Technical achievements following the formation of the company include spin-readout in atomic qubits in 2019,[14] a two qubit gate between phosphorus donor electrons in silicon in 2019,[7] and in 2022 the world’s first integrated circuit manufactured with atomic precision.[6]

In August 2023, SQC was awarded a contract with the NSW government to design bespoke quantum hardware solutions that could be used to solve optimisation problems on Sydney’s complex public transport network.[15]

In February 2024, SQC announced the appointment of Simon Segars, the former-CEO of Arm Holdings, as its new Chair.[16]

At SxSW in 2024, Michelle Simmons noted that the Commonwealth Bank and Telstra are using SQC’s quantum machine learning processor for fraud detection and network anomaly detection, respectively.[17]

In February 2025, SQC demonstrated the world’s highest fidelity performance implementation of Grover’s algorithm without the need for error correction.[12][18]

References

[edit]
  1. ^ "DARPA eyes companies targeting industrially useful quantum computers | DARPA". www.darpa.mil. Retrieved 2025-04-14.
  2. ^ "Australia's first quantum computing company launches at UNSW". UNSW Sites. Retrieved 2025-03-10.
  3. ^ Fuechsle, Martin; Miwa, Jill A.; Mahapatra, Suddhasatta; Ryu, Hoon; Lee, Sunhee; Warschkow, Oliver; Hollenberg, Lloyd C. L.; Klimeck, Gerhard; Simmons, Michelle Y. (2012). "A single-atom transistor". Nature Nanotechnology. 7 (4): 242–246. Bibcode:2012NatNa...7..242F. doi:10.1038/nnano.2012.21. ISSN 1748-3395. PMID 22343383.
  4. ^ Schofield, S. R.; Curson, N. J.; Simmons, M. Y.; Rueß, F. J.; Hallam, T.; Oberbeck, L.; Clark, R. G. (2003-09-25). "Atomically Precise Placement of Single Dopants in Si". Physical Review Letters. 91 (13): 136104. arXiv:cond-mat/0307599. Bibcode:2003PhRvL..91m6104S. doi:10.1103/PhysRevLett.91.136104. PMID 14525322.
  5. ^ Fox, Will. "World's first quantum computer integrated circuit". www.futuretimeline.net. Retrieved 2025-03-10.
  6. ^ a b Kiczynski, M.; Gorman, S. K.; Geng, H.; Donnelly, M. B.; Chung, Y.; He, Y.; Keizer, J. G.; Simmons, M. Y. (2022). "Engineering topological states in atom-based semiconductor quantum dots". Nature. 606 (7915): 694–699. Bibcode:2022Natur.606..694K. doi:10.1038/s41586-022-04706-0. ISSN 1476-4687. PMC 9217742. PMID 35732762.
  7. ^ a b He, Y.; Gorman, S. K.; Keith, D.; Kranz, L.; Keizer, J. G.; Simmons, M. Y. (2019). "A two-qubit gate between phosphorus donor electrons in silicon". Nature. 571 (7765): 371–375. Bibcode:2019Natur.571..371H. doi:10.1038/s41586-019-1381-2. hdl:1959.4/unsworks_63385. ISSN 1476-4687. PMID 31316197.
  8. ^ Keith, Daniel; Chung, Yousun; Kranz, Ludwik; Thorgrimsson, Brandur; Gorman, Samuel K.; Simmons, Michelle Y. (2022-09-09). "Ramped measurement technique for robust high-fidelity spin qubit readout". Science Advances. 8 (36): eabq0455. Bibcode:2022SciA....8..455K. doi:10.1126/sciadv.abq0455. ISSN 2375-2548. PMC 9451149. PMID 36070386.
  9. ^ Reiner, J.; Chung, Y.; Misha, S. H.; Lehner, C.; Moehle, C.; Poulos, D.; Monir, S.; Charde, K. J.; Macha, P.; Kranz, L.; Thorvaldson, I.; Thorgrimsson, B.; Keith, D.; Hsueh, Y. L.; Rahman, R. (2024). "High-fidelity initialization and control of electron and nuclear spins in a four-qubit register". Nature Nanotechnology. 19 (5): 605–611. Bibcode:2024NatNa..19..605R. doi:10.1038/s41565-023-01596-9. ISSN 1748-3387. PMC 11106007. PMID 38326467.
  10. ^ Fuechsle, Martin; Mahapatra, S.; Zwanenburg, F. A.; Friesen, Mark; Eriksson, M. A.; Simmons, Michelle Y. (2010). "Spectroscopy of few-electron single-crystal silicon quantum dots". Nature Nanotechnology. 5 (7): 502–505. Bibcode:2010NatNa...5..502F. doi:10.1038/nnano.2010.95. ISSN 1748-3395. PMID 20495552.
  11. ^ Kranz, Ludwik; Gorman, Samuel Keith; Thorgrimsson, Brandur; He, Yu; Keith, Daniel; Keizer, Joris Gerhard; Simmons, Michelle Yvonne (2020). "Quantum Computing: Exploiting a Single-Crystal Environment to Minimize the Charge Noise on Qubits in Silicon (Adv. Mater. 40/2020)". Advanced Materials. 32 (40). Bibcode:2020AdM....3270298K. doi:10.1002/adma.202070298. ISSN 0935-9648.
  12. ^ a b Thorvaldson, I.; Poulos, D.; Moehle, C. M.; Misha, S. H.; Edlbauer, H.; Reiner, J.; Geng, H.; Voisin, B.; Jones, M. T.; Donnelly, M. B.; Peña, L. F.; Hill, C. D.; Myers, C. R.; Keizer, J. G.; Chung, Y. (2025-02-20). "Grover's algorithm in a four-qubit silicon processor above the fault-tolerant threshold". Nature Nanotechnology: 1–6. doi:10.1038/s41565-024-01853-5. ISSN 1748-3395. PMID 39979400.
  13. ^ "Australia's first quantum computing company launches at UNSW". UNSW Sites. Retrieved 2025-03-10.
  14. ^ Koch, Matthias; Keizer, Joris G.; Pakkiam, Prasanna; Keith, Daniel; House, Matthew G.; Peretz, Eldad; Simmons, Michelle Y. (2019). "Spin read-out in atomic qubits in an all-epitaxial three-dimensional transistor". Nature Nanotechnology. 14 (2): 137–140. Bibcode:2019NatNa..14..137K. doi:10.1038/s41565-018-0338-1. ISSN 1748-3395. PMID 30617309.
  15. ^ Hendry, Justin (2023-10-09). "SQC is NSW's latest quantum bet for transport". InnovationAus.com. Retrieved 2025-03-10.
  16. ^ How, Brandon (2024-02-12). "SQC appoints ex-ARM chief as chair, fills govt board vacancy". InnovationAus.com. Retrieved 2025-03-10.
  17. ^ Hendry, Justin (2024-10-16). "Silicon Quantum Computing readies first commercial product for launch". InnovationAus.com. Retrieved 2025-03-10.
  18. ^ Abdel-Kareem, Mohamed (2025-02-22). "Silicon Quantum Computing Demonstrates 98.9% Accuracy in Grover's Algorithm Execution Using Qubits with Phosphorus Atoms Placed into Silicon". Quantum Computing Report. Retrieved 2025-03-10.
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