Silicon Quantum Computing announces the world’s first quantum integrated circuit

June 24, 2022 – Australian quantum computing manufacturer, Silicon Quantum Computing (SQC), has announced the world’s first integrated circuit fabricated at the atomic scale.

Delivery of this atomic-scale integrated circuit, which functions as an analog quantum processor, came less than a decade after the team declared in 2012 that it had fabricated the world’s first single-atom transistor and was completed two years ahead of schedule.

The SQC team that wrote the article in Nature. Credit: SQC

The SQC team used this quantum processor to accurately model the quantum states of a small organic polyacetylene molecule, definitively proving the validity of the company’s technology for modeling quantum systems.

“This is a major breakthrough,” says SQC founder Michelle Simmons AO. “Today’s conventional computers have difficulty simulating even relatively small molecules due to the large number of possible interactions between atoms. The development of SQC’s atomic-scale circuit technology will enable the company and its customers to build quantum models for a range of new materials, whether pharmaceuticals, battery materials or of catalysts. It won’t be long before we can start making new materials that have never existed before.

The result is also a huge validation of SQC’s atomic fabrication capabilities. To build the processor, SQC had to integrate multiple atomic components into a single device, which it has done from its world-class facility in Sydney, Australia.

“The exquisite precision of the device validates SQC’s technical strategy of focusing on quality over quantity. We have created extremely precise manufacturing technology that opens the door to a whole new world. This is a big step towards building a commercial quantum computer,” Simmons said.

Silicon Quantum Computing President Stephen Menzies agrees — and points to the company’s long history of achieving technical milestones.

“With critical and emerging technologies such as quantum hardware, stakeholders are gaining tremendous confidence in the technical team’s ability to meet the milestones set. Reaching such a milestone two years ahead of schedule is a triumph. .

“SQC engineers are now adapting the technology to address more industrially relevant molecules, and as a company we look forward to developing targeted industry partnerships to meet their simulation needs,” said Menzies. .

The breakthrough quantum processor meets the stringent scaling requirements of quantum computing hardware. It represents a major technical milestone on the way to achieving the company’s goal of providing an error-corrected processor.

MP Ed Husic, Minister of Industry and Science, commented on today’s landmark announcement: “SQC’s breakthrough in quantum computing is great news and a tremendous reflection on the quality of knowledge- do local. It provides a clear path for new and emerging technologies to support our world-class industries.

More information about the SQC atomic integrated circuit

The milestone of the atomic-scale integrated circuit is the culmination of 20 years of research led by Simmons. It addresses a challenge first postulated by pioneering theoretical physicist Professor Richard Feynman in his famous 1959 lecture Plenty of room downstairs.

In this lecture, Feynman asserted that if you want to understand how nature works, you must be able to control matter at the same length scales from which matter is constructed – that is, you must be able to control matter on the length scale of atoms. . Sixty-three years after Feynman first proposed this fundamental theory, Simmons and his team proved this conjecture and built an integrated circuit using atomic silicon components.

To achieve the first quantum integrated circuit, the SQC required the achievement of three distinct technological feats of atomic engineering.

The first was to create such small dots of uniformly sized atoms so that their energy levels would line up and electrons could easily pass through them.

The second was the ability to tune the energy levels of each point individually, but also of all points collectively, to control the flow of quantum information.

The third was the teams’ ability to control the distances between the dots with sub-nanometer precision so that the dots are close enough but still independent for the quantum coherent transport of electrons through the string.

SQC is now evolving its quantum hardware to take on computationally heavy tasks that cannot be performed by traditional computers.

About Silicon Quantum Computing Pty Ltd

Silicon Quantum Computing Pty Limited (SQC) is a private Australian company at the forefront of global efforts to build a commercial-scale quantum computer and bring quantum computing to market.

SQC was established in May 2017 by the Commonwealth of Australia, UNSW Sydney, Telstra Corporation, Commonwealth Bank of Australia and the State of New South Wales. It was funded to the tune of A$83 million to acquire a state-of-the-art Silicon Quantum Computing Intellectual Property (IP) portfolio developed over the past twenty years at the Center of Excellence for Quantum Computing and Communications Technology (CQC2T) and launch a technical development program to build a silicon quantum computer.

Since May 2017, the SQC has brought together a world-class team of quantum scientists, engineers and technicians, specialized equipment and globally unique laboratories at UNSW to pursue its program. In addition to its core processor technology, SQC is developing a “full-stack” quantum computer to ensure that it can deliver a useful, manufacturable quantum device.

SQC acknowledges the support and assistance of UNSW Sydney in carrying out its research and development program.

Source: SQC

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