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Primeur weekly 2020-03-16

Focus

EuroHPC work programme 2020 calls for consolidation type of projects with a budget of 170 million euro ...

Details of the three upcoming 2020 EuroHPC JU Calls for Proposals ...

EuroHPC JU will move to the Drosbach building in Luxembourg ...

Exascale supercomputing

MEEP Project: A flexible system supporting next generation European open source software and hardware ...

Ying-Chih Yang joins SiPearl as CTO ...

Quantum computing

Preparing Ireland for quantum - Irish Centre for High-End Computing brings prestigious European Quantum Technologies Conference to Dublin ...

Finnish researchers look at noisy quantum computer ...

NSF CAREER Award supports framework for photons as quantum transistors ...

Engineers crack 58-year-old puzzle on way to quantum breakthrough ...

New error correction method provides key step toward quantum computing ...

IDC survey finds optimism that quantum computing will result in competitive advantage ...

Focus on Europe

New HLRS "Hawk" supercomputer to deliver unparalleled performance, capacity, and density for science and research ...

It is time to register for the Supercomputing Frontiers 2020 virtual conference ...

Middleware

SDSC announces comprehensive data sharing resource ...

Hardware

Supermicro unveils MegaDC servers - The first commercial off-the-shelf systems designed exclusively for hyperscale data centres ...

Mellanox delivers Spectrum-3 based Ethernet switches - First 12,8 Tbps networking platforms optimized for Cloud, storage, and AI ...

Semtech announces production of Tri-Edge, a PAM4 CDR platform for 200G and 400G data centre applications ...

Innovium delivers production grade SONiC/SAI for TERALYNX based switch systems ...

Innovium and Credo announce interoperability of production TERALYNX 7 switch family with Credo's Dual 400G MACsec solution ...

Kingston Technology releases enterprise-grade data centre NVMe SSD for mixed use ...

MaxLinear's 2nd generation PAM4 DSP selected by Centera Photonics to deliver sub-3,5W 100G optical modules for hyperscale data centres ...

Applications

UK supercomputer to combat Africa's worst locust outbreak in decades ...

Formula for possible treatment of coronavirus developed by innovative Bulgarian company ...

CSC has selected Mahti supercomputer Pilot Projects ...

HETDEX experiment, led by UT Austin, uses advanced computing resources at TACC to pin down the expansion rate of the universe ...

Oden Institute's Feliciano Giustino applies TACC's supercomputing power to the development of novel materials at the quantum scale ...

Computer model solves mystery of how gas bubbles build big methane hydrate deposits ...

A flexible brain for AI ...

AI assist CT analysis in identifying COVID-19 patients ...

The Cloud

Centre-wide support for, and R&D around, containers helps researchers compute with ease at TACC and elsewhere ...

Oracle announces fiscal 2020 third quarter financial results ...

Hydro66 and maincubes sign partnership for European coverage ...

Finnish researchers look at noisy quantum computer


A quantum computer produced by the Canadian company D-Wave systems. Image: D-Wave Systems Inc.
6 Mar 2020 Espoo - Researchers from CSC - IT center for Science, Aalto University and Åbo Akademi and their collaborators from Boston University in the USA have for the first time demonstrated how the noise impacts on quantum computing in a systematic way. The results are published in the prestigious journalPhysical Review Letters.

In a classical computer, all data are broken down to sequences of bits taking the values 0 and 1, and these two values correspond to "on" or "off" states of the millions of tiny electronic switches in the computer's processing unit and memory.

According to the principles of quantum mechanics, the concept of a bit can be generalized to a "qubit", the state of which can be both 0 and 1 at the same time and in many different ways (a superposition). A quantum computer can be built using a large number of these qubits, which have to be programmed using completely new algorithms and languages. A quantum computer may in principle be able to solve problems that are practically impossible to solve on a classical computer - for example, designing new molecules or materials with desired properties by calculations at the atomic and electronic level - which itself requires the use of quantum mechanics.

From having been a theoretical concept explored mainly in university laboratories, quantum computers are now rapidly emerging on the commercial scene. The available machines are still largely experimental, and are used by companies and research institutions to explore potential applications and prepare for the anticipated era of "quantum supremacy" - meaning that quantum computers become more powerful than classical ones, at least for some problems.

A major challenge is that the qubits are very sensitive to noise that quickly can destroy their quantum superposition states. Even if the devices are cooled to just a fraction of a degree above the absolute zero of temperature to minimize the noise arising from the thermal environment, the life time of the superposition states is still very short, often less than a microsecond.

With a type of quantum computer produced by the Canadian company D-Wave systems, certain optimization problems can be solved by the principle of quantum annealing. Here the quantum property of the qubits is gradually changed in such a way that they eventually "quantum freeze" into solution of the problem programmed on the device. However, this process is sensitive to noise in a way that is not well understood.

Now a team of researchers from three Finnish institutions - CSC, Aalto University, and Abo Akademi University - and their collaborators from Boston University in the USA have for the first time demonstrated how the noise impacts a calculation in a systematic way. By varying the time over which the quantum property of the qubits is changed - from microseconds to milliseconds - and studying different numbers of coupled qubits in a D-Wave device, they were able to confirm a general principle of defect creation - meaning errors in the calculation.

According to this principle, a longer computing time should give a better result, but the researchers found that the noise negatively affects the results more if the time is longer. They explained this behaviour by a mathematical model, which will be a useful tool for diagnosing future quantum annealing devices and to find the best ways to operate them.

According to team member Anders Sandvik from Boston University, quantum annealing devices may soon become important tools for simulating quantum behaviors of matter, once the amount of noise is further reduced.

"The team's successful work represents the first major Finnish research effort on the quantum annealing paradigm of quantum computing", stated Jan Åström, team member from CSC. "Quantum computing is rapidly evolving, and CSC is planning additional projects to promote the building of strong Finnish competence in this critical forefront-area of science and technology."

Phillip Weinberg, Marek Tylutki, Jami M. Rönkkö, Jan Westerholm, Jan A. Åström, Pekka Manninen, Päivi Törmä, and Anders W. Sandvik are the authors of the paper titled " Scaling and Diabatic Effects in Quantum Annealing with a D-Wave Device ", published inPhysical Review Letters124, 090502, on 5 March 2020.
Source: Finnish IT Center for Science Ltd - CSC

Back to Table of contents

Primeur weekly 2020-03-16

Focus

EuroHPC work programme 2020 calls for consolidation type of projects with a budget of 170 million euro ...

Details of the three upcoming 2020 EuroHPC JU Calls for Proposals ...

EuroHPC JU will move to the Drosbach building in Luxembourg ...

Exascale supercomputing

MEEP Project: A flexible system supporting next generation European open source software and hardware ...

Ying-Chih Yang joins SiPearl as CTO ...

Quantum computing

Preparing Ireland for quantum - Irish Centre for High-End Computing brings prestigious European Quantum Technologies Conference to Dublin ...

Finnish researchers look at noisy quantum computer ...

NSF CAREER Award supports framework for photons as quantum transistors ...

Engineers crack 58-year-old puzzle on way to quantum breakthrough ...

New error correction method provides key step toward quantum computing ...

IDC survey finds optimism that quantum computing will result in competitive advantage ...

Focus on Europe

New HLRS "Hawk" supercomputer to deliver unparalleled performance, capacity, and density for science and research ...

It is time to register for the Supercomputing Frontiers 2020 virtual conference ...

Middleware

SDSC announces comprehensive data sharing resource ...

Hardware

Supermicro unveils MegaDC servers - The first commercial off-the-shelf systems designed exclusively for hyperscale data centres ...

Mellanox delivers Spectrum-3 based Ethernet switches - First 12,8 Tbps networking platforms optimized for Cloud, storage, and AI ...

Semtech announces production of Tri-Edge, a PAM4 CDR platform for 200G and 400G data centre applications ...

Innovium delivers production grade SONiC/SAI for TERALYNX based switch systems ...

Innovium and Credo announce interoperability of production TERALYNX 7 switch family with Credo's Dual 400G MACsec solution ...

Kingston Technology releases enterprise-grade data centre NVMe SSD for mixed use ...

MaxLinear's 2nd generation PAM4 DSP selected by Centera Photonics to deliver sub-3,5W 100G optical modules for hyperscale data centres ...

Applications

UK supercomputer to combat Africa's worst locust outbreak in decades ...

Formula for possible treatment of coronavirus developed by innovative Bulgarian company ...

CSC has selected Mahti supercomputer Pilot Projects ...

HETDEX experiment, led by UT Austin, uses advanced computing resources at TACC to pin down the expansion rate of the universe ...

Oden Institute's Feliciano Giustino applies TACC's supercomputing power to the development of novel materials at the quantum scale ...

Computer model solves mystery of how gas bubbles build big methane hydrate deposits ...

A flexible brain for AI ...

AI assist CT analysis in identifying COVID-19 patients ...

The Cloud

Centre-wide support for, and R&D around, containers helps researchers compute with ease at TACC and elsewhere ...

Oracle announces fiscal 2020 third quarter financial results ...

Hydro66 and maincubes sign partnership for European coverage ...