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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 ...

Multi-functional quantum bits for future computers

Laser light can be used to optically read out quantum registers based on spin states of single rare earth ions in a crystalline membrane. Credit: Thomas Huemmer.29 Oct 2018 Karlsruhe - Compared to classical computers, future quantum computers are to far more efficiently solve certain computation problems. While conventional computers execute one computation step after the other, quantum computers can execute many computation steps in parallel. This will accelerate processing of large data volumes. The microstructure of certain materials and elements of the quantum bits, however, is of crucial importance. Researchers of KIT study materials for such multi-functional quantum bits. Their project SQUARE is funded by the European Commission with 3 million euro.

Contrary to the classical computer chip, the smallest memory element of a quantum computer chip, the quantum bit or qubit, does not only store binary information - 0 or 1, off or on, but also values in between, called quantum mechanics superpositions. With the help of these quantum properties, many computation processes can be executed in parallel and, hence, computing capacity of a quantum computer is enhanced significantly. "A promising approach to the next generation of quantum computers is based on materials, single systems of which are not larger than an atom and the quantum properties of which can be accessed and controlled optically", stated Professor David Hunger of KIT's Physikalisches Institut, who coordinates the SQUARE project.

For this, rare earth ions, electrically charged atoms of rare-earth metals, exhibit an outstanding potential that will be studied in SQUARE. The ions can store quantum states for a very long time and can be activated separately by light in special solid-state crystals. Hence, a large number of ions is accessible as qubits. "Thanks to their special electronic structure, rare earth ions are shielded against interference fields", David Hunger stated. "Moreover, they can strongly interact with each other, which is a major basis for quantum circuits." Quantum properties can be read out directly by light and quantum states can be transmitted to photons. This enables interconnection of distant quantum nodes and their use for quantum communication.

Research relating to single rare earth ions still is in an early stage, but "the project concentrates on a highly promising platform that offers many advantages over established approaches, such as ions captured in vacuum devices and superconducting quantum circuits", David Hunger said.

SQUARE is aimed at establishing rare earth ions that can be addressed separately as basic building blocks for scalable quantum technologies. In particular, it is planned to demonstrate functional elements of a multi-qubit quantum register that can be read out optically and to realize building blocks of a quantum network. This will significantly enhance computation capacity of quantum computers in the future. In cooperation with industry partners, central technological components required for scalable implementation will be developed.

The European Commission funds SQUARE within the framework of the Quantum Technology Flagship. Over a duration of ten years, it is planned to invest a billion euros into research relating to quantum technologies. With this, development of novel technologies based on elemental quantum effects will be accelerated and closer cooperation with industry will be initiated to speed up development to maturity.

Source: Karlsruher Institut für Technologie - KIT

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 ...