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Primeur weekly 2018-11-05

Exascale supercomputing

Cray introduces first exascale-class supercomputer ...

DOE to build next-generation supercomputer at Lawrence Berkeley National Laboratory ...

Crowd computing

FaceMe to use Tatau's distributed supercomputer ...

Quantum computing

Full steam ahead to the quantum web: Mainz University is involved in the European Flagship on Quantum Technologies programme ...

A quantum computer for Europe: Joining forces for new FET flagship project OpenSuperQ ...

Tianhe-2 supercomputer works out the criterion for quantum supremacy ...

A billion euro for quantum research - the Danish contribution ...

One step closer to complex quantum teleportation ...

Tests show integrated quantum chip operations possible ...

Researchers create scalable platform for on-chip quantum emitters ...

Berkeley computer theorists show path to verifying that quantum beats classical ...

Multi-functional quantum bits for future computers ...

Focus on Europe

PRACE to issue The Scientific Case for Computing in Europe 2018-2026 ...

PRACE Digest 2018 now available online ...

Open Edge and HPC Initiative to be launched at SC18 ...

Human brain supercomputer with 1 million processors switched on for first time ...

Middleware

AccelStor unveils the advanced flash data reduction technology for the era of data intensive workloads ...

Bright unveils plans to exhibit at SC18 in Dallas ...

Hardware

Cray reports third quarter 2018 financial results ...

Ohio Supercomputer Center installing new Pitzer Cluster built by Dell EMC ...

SDSC Chief Data Science Officer Ilkay Altintas named an HDSI Fellow ...

Applications

Esther Bron is the winner of the Young eScientist Award 2018 ...

University of Tokyo team becomes Gordon Bell Prize finalist after performing the most complex earthquake simulation to date ...

HPC & Artificial Intelligence: Addressing humanity's grand challenges at SC18 ...

Machine learning to help optimize traffic and reduce pollution ...

The Cloud

Red Hat refines hybrid Cloud innovation with latest version of the world's leading enterprise Linux platform ...

Cloud computing load balancing based on ant colony algorithms improves performance ...

VoiceBase extends deep learning neural network compute to Verne Global ...

HPE delivers first above-the-cloud supercomputing services for astronauts to advance space exploration ...

Tests show integrated quantum chip operations possible

This photo shows from left to right Dr. Bas Hensen, professor Dzurak, Dr. Kok Wai Chan, and former PhD student Michael Fogarty, who was lead author on the paper. Credit: Paul Henderson-Kelly.30 Oct 2018 Sydney - Quantum computers that are capable of solving complex problems, like drug design or machine learning, will require millions of quantum bits - or qubits - connected in an integrated way and designed to correct errors that inevitably occur in fragile quantum systems. Now, an Australian research team has experimentally realized a crucial combination of these capabilities on a silicon chip, bringing the dream of a universal quantum computer closer to reality.

They have demonstrated an integrated silicon qubit platform that combines both single-spin addressability - the ability to 'write' information on a single spin qubit without disturbing its neighbours - and a qubit 'read-out' process that will be vital for quantum error correction.

Moreover, their new integrated design can be manufactured using well-established technology used in the existing computer industry.

The team is led by Scientia Professor Andrew Dzurak of the University of New South Wales in Sydney, a programme leader at the Centre of Excellence for Quantum Computation and Communication Technology (CQC2T) and Director of the NSW node of the Australian National Fabrication Facility.

Last year, Andrew Dzurak and colleagues published a design for a novel chip architecture that could allow quantum calculations to be performed using silicon CMOS - complementary metal-oxide-semiconductor - components - the basis of all modern computer chips.

In their new study, published in the journalNature Communications, the team combine two fundamental quantum techniques for the first time, confirming the promise of their approach.

Andrew Dzurak's team had also previously shown that an integrated silicon qubit platform can operate with single-spin addressability - the ability to rotate a single spin without disturbing its neighbours.

They have now shown that they can combine this with a special type of quantum readout process known as Pauli spin blockade, a key requirement for quantum error correcting codes that will be necessary to ensure accuracy in large spin-based quantum computers. This new combination of qubit readout and control techniques is a central feature of their quantum chip design.

"We've demonstrated the ability to do Pauli spin readout in our silicon qubit device but, for the first time, we've also combined it with spin resonance to control the spin", stated Andrew Dzurak.

"This is an important milestone for us on the path to performing quantum error correction with spin qubits, which is going to be essential for any universal quantum computer."

"Quantum error correction is a key requirement in creating large-scale useful quantum computing because all qubits are fragile, and you need to correct for errors as they crop up", stated lead author, Michael Fogarty, who performed the experiments as part of his PhD research with Professor Dzurak at the University of New South Wales (UNSW).

"But this creates significant overhead in the number of physical qubits you need in order to make the system work", noted Michael Fogarty.

Andrew Dzurak stated: "By using silicon CMOS technology we have the ideal platform to scale to the millions of qubits we will need, and our recent results provide us with the tools to achieve spin qubit error-correction in the near future."

"It's another confirmation that we're on the right track. And it also shows that the architecture we've developed at UNSW has, so far, shown no roadblocks to the development of a working quantum computer chip. And, what's more, one that can be manufactured using well-established industry processes and components."

Working in silicon is important not just because the element is cheap and abundant, but because it has been at the heart of the global computer industry for almost 60 years. The properties of silicon are well understood and chips containing billions of conventional transistors are routinely manufactured in big production facilities.

Three years ago, Andrew Dzurak's team published in the journalNaturethe first demonstration of quantum logic calculations in a real silicon device with the creation of a two-qubit logic gate - the central building block of a quantum computer.

"Those were the first baby steps, the first demonstrations of how to turn this radical quantum computing concept into a practical device using components that underpin all modern computing", stated Professor Mark Hoffman, UNSW's Dean of Engineering.

"Our team now has a blueprint for scaling that up dramatically. We've been testing elements of this design in the lab, with very positive results. We just need to keep building on that - which is still a hell of a challenge, but the groundwork is there, and it's very encouraging."

"It will still take great engineering to bring quantum computing to commercial reality, but clearly the work we see from this extraordinary team at CQC2T puts Australia in the driver's seat", he added.

Other authors of the new Nature Communications paper are UNSW researchers Kok Wai Chan, Bas Hensen, Wister Huang, Tuomo Tanttu, Henry Yang, Arne Laucht, Fay Hudson and Andrea Morello, as well as Menno Veldhorst of QuTech and TU Delft, Thaddeus Ladd of HRL Laboratories and Kohei Itoh of Japan's Keio University.

In 2017, a consortium of Australian governments, industry and universities established Australia's first quantum computing company to commercialise CQC2T's world-leading intellectual property.

Operating out of new laboratories at UNSW, Silicon Quantum Computing Pty Ltd (SQC) has the target of producing a 10-qubit demonstration device in silicon by 2022, as the forerunner to creating a silicon-based quantum computer.

The work of Andrew Dzurak and his team will be one component of SQC realising that ambition. UNSW scientists and engineers at CQC2T are developing parallel patented approaches using single atom and quantum dot qubits.

In May 2018, the then Prime Minister of Australia, Malcolm Turnbull, and the President of France, Emmanuel Macron, announced the signing of a Memorandum of Understanding (MoU) addressing a new collaboration between SQC and the world-leading French research and development organisation, Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA).

The MoU outlined plans to form a joint venture in silicon-CMOS quantum computing technology to accelerate and focus technology development, as well as to capture commercialisation opportunities - bringing together French and Australian efforts to develop a quantum computer.

The proposed Australian-French joint venture would bring together Andrew Dzurak's team, located at UNSW, with a team led by Dr Maud Vinet from CEA, who are experts in advanced CMOS manufacturing technology, and who have also recently demonstrated a silicon qubit made using their industrial-scale prototyping facility in Grenoble.

It is estimated that industries comprising approximately 40% of Australia's current economy could be significantly impacted by quantum computing.

Possible applications include software design, machine learning, scheduling and logistical planning, financial analysis, stock market modelling, software and hardware verification, climate modelling, rapid drug design and testing, and early disease detection and prevention.

Source: University of New South Wales

Back to Table of contents

Primeur weekly 2018-11-05

Exascale supercomputing

Cray introduces first exascale-class supercomputer ...

DOE to build next-generation supercomputer at Lawrence Berkeley National Laboratory ...

Crowd computing

FaceMe to use Tatau's distributed supercomputer ...

Quantum computing

Full steam ahead to the quantum web: Mainz University is involved in the European Flagship on Quantum Technologies programme ...

A quantum computer for Europe: Joining forces for new FET flagship project OpenSuperQ ...

Tianhe-2 supercomputer works out the criterion for quantum supremacy ...

A billion euro for quantum research - the Danish contribution ...

One step closer to complex quantum teleportation ...

Tests show integrated quantum chip operations possible ...

Researchers create scalable platform for on-chip quantum emitters ...

Berkeley computer theorists show path to verifying that quantum beats classical ...

Multi-functional quantum bits for future computers ...

Focus on Europe

PRACE to issue The Scientific Case for Computing in Europe 2018-2026 ...

PRACE Digest 2018 now available online ...

Open Edge and HPC Initiative to be launched at SC18 ...

Human brain supercomputer with 1 million processors switched on for first time ...

Middleware

AccelStor unveils the advanced flash data reduction technology for the era of data intensive workloads ...

Bright unveils plans to exhibit at SC18 in Dallas ...

Hardware

Cray reports third quarter 2018 financial results ...

Ohio Supercomputer Center installing new Pitzer Cluster built by Dell EMC ...

SDSC Chief Data Science Officer Ilkay Altintas named an HDSI Fellow ...

Applications

Esther Bron is the winner of the Young eScientist Award 2018 ...

University of Tokyo team becomes Gordon Bell Prize finalist after performing the most complex earthquake simulation to date ...

HPC & Artificial Intelligence: Addressing humanity's grand challenges at SC18 ...

Machine learning to help optimize traffic and reduce pollution ...

The Cloud

Red Hat refines hybrid Cloud innovation with latest version of the world's leading enterprise Linux platform ...

Cloud computing load balancing based on ant colony algorithms improves performance ...

VoiceBase extends deep learning neural network compute to Verne Global ...

HPE delivers first above-the-cloud supercomputing services for astronauts to advance space exploration ...