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Primeur weekly 2015-10-05

Special

Developing hardware for the exascale era in the DEEP and DEEP-ER projects ...

Exascale supercomputing

Is 3D-stacked memory the solution for HPC? ...

Quantum computing

Scientists produce status check on quantum teleportation ...

Focus on Europe

12th PRACE Call for Proposals for Project Access now open ...

ESiWACE and ESCAPE: integrating leading edge climate and weather simulations into HPC ...

Human Brain Project (HBP) pre-commercial procurement has entered its final phase ...

Imperial announces winner of competition to name supercomputer ...

NLeSC Integrator Barend Mons appointed Chair of European Commission's high level expert group ...

Middleware

IBM expands Watson platform for next generation of builders; extends industry's largest portfolio of cognitive APIs ...

Hardware

Large hyper data centres making use of Climaveneta high efficiency solutions ...

Dialog Semiconductor to acquire Atmel for $4.6 billion ...

IBM research breakthrough paves way for post-silicon future with carbon nanotube electronics ...

Mellanox Technologies announces definitive agreement to acquire EZchip ...

Kyoto University's Yukawa Institute for Theoretical Physics awards supercomputer contract to Cray ...

Applications

SDSC extends its "network" with Graph Analytics Training ...

NVIDIA designates University of Wyoming as GPU research centre ...

Spectacular new era in satellite meteorology unveiled ...

University of Maryland awarded $1 million from NIST for next-generation cryptography ...

NWSC Visitor Center designed to educate and inspire public about science ...

New supercomputer software takes us one giant step closer to simulating the human brain ...

Titan helps unpuzzle decades-old plutonium perplexities ...

Alexander Szalay named recipient of 2015 IEEE Computer Society Sidney Fernbach Award ...

The Cloud

SDSC upgrades Cloud computing and storage services ...

Cloud28+ community launches Unified European Cloud Catalogue ...

Scientists produce status check on quantum teleportation

30 Sep 2015 York - Mention the word 'teleportation' and for many people it conjures up "Beam me up, Scottie" images of Captain James T Kirk. But in the last two decades quantum teleportation - transferring the quantum structure of an object from one place to another without physical transmission - has moved from the realms of Star Trek fantasy to tangible reality.

Quantum teleportation is an important building block for quantum computing, quantum communication and quantum network and, eventually, a quantum Internet. While theoretical proposals for a quantum Internet already exist, the problem for scientists is that there is still debate over which of various technologies provides the most efficient and reliable teleportation system. This is the dilemma which an international team of researchers, led by Dr. Stefano Pirandola of the Department of Computer Science at the University of York, set out to resolve.

In a paper published in Nature Photonics , the team, which included scientists from the Freie Universität Berlin and the Universities of Tokyo and Toronto, reviewed the theoretical ideas around quantum teleportation focusing on the main experimental approaches and their attendant advantages and disadvantages.

None of the technologies alone provide a perfect solution, so the scientists concluded that a hybridisation of the various protocols and underlying structures would offer the most fruitful approach.

For instance, systems using photonic qubits work over distances up to 143 kilometres, but they are probabilistic in that only 50 percent of the information can be transported. To resolve this, such photon systems may be used in conjunction with continuous variable systems, which are 100 percent effective but currently limited to short distances.

Most importantly, teleportation-based optical communication needs an interface with suitable matter-based quantum memories where quantum information can be stored and further processed.

Dr. Pirandola, who is also a member of the York Centre for Quantum Technologies, stated: "We don't have an ideal or universal technology for quantum teleportation. The field has developed a lot but we seem to need to rely on a hybrid approach to get the best from each available technology."

"The use of quantum teleportation as a building block for a quantum network depends on its integration with quantum memories. The development of good quantum memories would allow us to build quantum repeaters, therefore extending the range of teleportation. They would also give us the ability to store and process the transmitted quantum information at local quantum computers."

"This could ultimately form the backbone of a quantum Internet. The revised hybrid architecture will likely rely on teleportation-based long-distance quantum optical communication, interfaced with solid state devices for quantum information processing."
Source: University of York

Back to Table of contents

Primeur weekly 2015-10-05

Special

Developing hardware for the exascale era in the DEEP and DEEP-ER projects ...

Exascale supercomputing

Is 3D-stacked memory the solution for HPC? ...

Quantum computing

Scientists produce status check on quantum teleportation ...

Focus on Europe

12th PRACE Call for Proposals for Project Access now open ...

ESiWACE and ESCAPE: integrating leading edge climate and weather simulations into HPC ...

Human Brain Project (HBP) pre-commercial procurement has entered its final phase ...

Imperial announces winner of competition to name supercomputer ...

NLeSC Integrator Barend Mons appointed Chair of European Commission's high level expert group ...

Middleware

IBM expands Watson platform for next generation of builders; extends industry's largest portfolio of cognitive APIs ...

Hardware

Large hyper data centres making use of Climaveneta high efficiency solutions ...

Dialog Semiconductor to acquire Atmel for $4.6 billion ...

IBM research breakthrough paves way for post-silicon future with carbon nanotube electronics ...

Mellanox Technologies announces definitive agreement to acquire EZchip ...

Kyoto University's Yukawa Institute for Theoretical Physics awards supercomputer contract to Cray ...

Applications

SDSC extends its "network" with Graph Analytics Training ...

NVIDIA designates University of Wyoming as GPU research centre ...

Spectacular new era in satellite meteorology unveiled ...

University of Maryland awarded $1 million from NIST for next-generation cryptography ...

NWSC Visitor Center designed to educate and inspire public about science ...

New supercomputer software takes us one giant step closer to simulating the human brain ...

Titan helps unpuzzle decades-old plutonium perplexities ...

Alexander Szalay named recipient of 2015 IEEE Computer Society Sidney Fernbach Award ...

The Cloud

SDSC upgrades Cloud computing and storage services ...

Cloud28+ community launches Unified European Cloud Catalogue ...