Silicon Quantum Computing

{{Short description|Australian quantum computing company}}{{Infobox company

| trading_name = Silicon Quantum Computing Pty Ltd

| type = Private

| industry = Quantum Computing

| founded = 2017

| hq_location = Sydney, Australia

| key_people = {{Unbulleted list|Michelle Simmons (CEO)|Simon Segars (Chairman)}}

| website = {{URL|https://sqc.com.au}}

}}

Silicon Quantum Computing Pty Ltd (SQC) is a Sydney, Australia-based quantum computing company.

The company develops quantum computers and analogue quantum devices using phosphorus atoms manufactured within silicon{{Cite journal |last1=Schofield |first1=S. R. |last2=Curson |first2=N. J. |last3=Simmons |first3=M. Y. |last4=Rueß |first4=F. J. |last5=Hallam |first5=T. |last6=Oberbeck |first6=L. |last7=Clark |first7=R. G. |date=2003-09-25 |title=Atomically Precise Placement of Single Dopants in Si |url=https://link.aps.org/doi/10.1103/PhysRevLett.91.136104 |journal=Physical Review Letters |volume=91 |issue=13 |pages=136104 |doi=10.1103/PhysRevLett.91.136104|pmid=14525322 |arxiv=cond-mat/0307599 |bibcode=2003PhRvL..91m6104S }} using scanning tunnelling microscopes, an approach within the field of spin qubits.

History

SQC was founded by Michelle Simmons in 2017.{{Cite web |title=Australia gets quantum computing company |url=https://ia.acs.org.au/article/2017/australia-gets-quantum-computing-company.html |access-date=2025-06-09 |website=Information Age}} She is recognised for her foundational contributions{{Cite web |last=Dargan |first=James |date=2023-10-19 |title=Michelle Simmons, 2018 Australian of the Year, Wins PM's Top Science Prize for Pioneering Quantum Computing in Atomic Electronics |url=https://thequantuminsider.com/2023/10/19/michelle-simmons-2018-australian-of-the-year-wins-pms-top-science-prize-for-pioneering-quantum-computing-in-atomic-electronics/ |access-date=2025-06-09 |website=The Quantum Insider |language=en-US}} to the field of atomic electronics. The company is chaired by Simon Segars{{Cite web |title=Fellow Detail Page {{!}} Royal Society |url=https://royalsociety.org/sitecore/content/royal-society/configuration/foundation/dynamics-api/fellowsdetailpage/ |access-date=2025-06-09 |website=royalsociety.org |language=en}} the former Chief Executive Officer (CEO) of ARM Holdings PLC.

At incorporation, the company raised A$83 million from the Australian Federal Government, the New South Wales Government, the University of New South Wales, Telstra and the Commonwealth Bank of Australia.{{Cite web |date=2017-08-22 |title=UNSW joins with government and business to keep quantum computing technology in Australia |url=https://www.afr.com/technology/unsw-joins-with-government-and-business-to-keep-quantum-computing-technology-in-australia-20170821-gy0tki |access-date=2025-06-09 |website=Australian Financial Review |language=en}}

Technology

SQC uses phosphorus atoms precision-placed within pure silicon (Si-28){{Cite web |title=Silex and Silicon Quantum Computing Launch Silicon Enrichment Project for Quantum Computing |url=https://www.hpcwire.com/off-the-wire/silex-and-silicon-quantum-computing-launch-silicon-enrichment-project-for-quantum-computing/ |access-date=2025-06-09 |website=HPCwire |language=en-US}} to create qubits. Simmons' research group, prior to the incorporation of SQC in 2012, created the first single atom transistor.{{Cite journal |last1=Fuechsle |first1=Martin |last2=Miwa |first2=Jill A. |last3=Mahapatra |first3=Suddhasatta |last4=Ryu |first4=Hoon |last5=Lee |first5=Sunhee |last6=Warschkow |first6=Oliver |last7=Hollenberg |first7=Lloyd C. L. |last8=Klimeck |first8=Gerhard |last9=Simmons |first9=Michelle Y. |date=2012-02-19 |title=A single-atom transistor |url=https://www.nature.com/articles/nnano.2012.21 |journal=Nature Nanotechnology |language=en |volume=7 |issue=4 |pages=242–246 |doi=10.1038/nnano.2012.21 |pmid=22343383 |bibcode=2012NatNa...7..242F |issn=1748-3395}} SQC created the 3D atom transistor in 2019{{Cite journal |last1=Koch |first1=Matthias |last2=Keizer |first2=Joris G. |last3=Pakkiam |first3=Prasanna |last4=Keith |first4=Daniel |last5=House |first5=Matthew G. |last6=Peretz |first6=Eldad |last7=Simmons |first7=Michelle Y. |date=2019-01-07 |title=Spin read-out in atomic qubits in an all-epitaxial three-dimensional transistor |url=https://www.nature.com/articles/s41565-018-0338-1 |journal=Nature Nanotechnology |language=en |volume=14 |issue=2 |pages=137–140 |doi=10.1038/s41565-018-0338-1 |pmid=30617309 |bibcode=2019NatNa..14..137K |hdl=1959.4/unsworks_63403 |issn=1748-3395|hdl-access=free }} and an integrated circuit made with atomic precision in 2022.{{Cite journal |last1=Kiczynski |first1=M. |last2=Gorman |first2=S. K. |last3=Geng |first3=H. |last4=Donnelly |first4=M. B. |last5=Chung |first5=Y. |last6=He |first6=Y. |last7=Keizer |first7=J. G. |last8=Simmons |first8=M. Y. |date=2022-06-22 |title=Engineering topological states in atom-based semiconductor quantum dots |journal=Nature |language=en |volume=606 |issue=7915 |pages=694–699 |doi=10.1038/s41586-022-04706-0 |issn=1476-4687 |pmc=9217742 |pmid=35732762|bibcode=2022Natur.606..694K }}

See also

References

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