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Primeur weekly 2017-09-25

Special

2017 - Another year on the Road to Exascale: The rise of Machine Intelligence ...

Focus

ARM/Allinea alliance is building a community with promising HPC tools ...

Mont-Blanc prototypes form excellent testbeds for ARM-based but also other platforms ...

Exascale supercomputing

Department of Energy's Exascale Computing Project (ECP) names Doug Kothe as Director ...

Secretary of Energy Rick Perry announces High Performance Computing for Materials Programme to help industry develop new, improved materials for severe environments ...

Quantum computing

Cost-effective quantum moves a step closer ...

Researchers demonstrate quantum teleportation of patterns of light ...

Focus on Europe

DeepL anchors neural machine translator at Verne Global's HPC-optimised data centre ...

Intel awards Paderborn University a cluster fueled by Xeon processors and Intel Arria 10 FPGAs ...

A new way to enhance the capacity of memory devices ...

Middleware

Bright Computing announces support for Ubuntu ...

Altair extends its strategic relationship with HPE ...

Hardware

Mellanox appoints Shlomit Weiss to Senior Vice President of Silicon Engineering ...

Japan Advanced Institute of Science and Technology puts Cray XC40 supercomputer into production ...

MemComputing compute engine rivals supercomputer processing speeds ...

Japan's Yokohama City University selects Cray XC50-AC supercomputer for life sciences research ...

Preferred Networks launches one of Japan's most powerful private sector supercomputers ...

Cray awarded $48 million contract from the Korea Institute of Science and Technology Information ...

Supermicro launches new 6U SuperBlade disaggregated server systems supporting rack scale design and free air cooling ...

Applications

Berkeley Lab cosmology software scales up to 658,784 Knights Landing cores ...

Multiscale simulations help predict unruly plasma behaviour ...

The Cloud

Oracle's new SPARC systems deliver 2-7x better performance, security capabilities, and efficiency than Intel-based systems ...

Cost-effective quantum moves a step closer

19 Sep 2017 Philadelphia - Canadian and US researchers have taken an important step towards enabling quantum networks to be cost-effective and truly secure from attack. The experiments, by the team from the University of Calgary, the California Institute of Technology and the National Institute of Standards and Technology, Colorado, prove the viability of a measurement-device-independent quantum key distribution (QKD) system, based on readily available hardware.

QKD provides a method of provably secure communication. Many QKD systems, including commercial systems, have been developed during the last 30 years, and important elements such as secret key rates and maximum transmission have continuously improved.

The team's results, published in the journal Quantum Science and Technology , show how they employed cost-effective and commercially available hardware such as distributed feedback (DFB) lasers and field-programmable gate arrays (FPGA) electronics, which enable time-bin qubit preparation and time-tagging, and active feedback systems that allow for compensation of time-varying properties of photons after transmission through deployed fibre.

The first author Raju Valivarthi stated: "Quantum hacking over the past decade has also shown, however, that the specifications of components and devices used in actual QKD systems never perfectly agree with the theoretical description used in security proofs, which can compromise the security of real QKD systems. For instance, so-called 'blinding attacks' exploit vulnerabilities of single photon detectors (SPDs) to open a side-channel, via which an eavesdropper can gain full information about the (assumed-to-be) secure key. Making practical QKD systems secure against all such attacks is a challenging task."

Senior author Dr. Qiang Zhou stated: "Our MDI-QKD system includes four parts: qubit preparation module, Bell state measurement (BSM) module, control module, and time-tagging module, which allows key generation from qubits in randomly prepared states. It is worth to note that our control module in the demonstration is further improved to control the polarisation and arrival-time of photons travelling from Alice and Bob to Charlie, which ensures their indistinguishability at the moment of the BSM."

Group leader Professor Wolfgang Tittel stated: "Our experimental demonstration paves the way for MDI-QKD-based star-type quantum networks with kbps secret key rates spanning geographical distances of more than 100km."

Source: IOP Publishing

Back to Table of contents

Primeur weekly 2017-09-25

Special

2017 - Another year on the Road to Exascale: The rise of Machine Intelligence ...

Focus

ARM/Allinea alliance is building a community with promising HPC tools ...

Mont-Blanc prototypes form excellent testbeds for ARM-based but also other platforms ...

Exascale supercomputing

Department of Energy's Exascale Computing Project (ECP) names Doug Kothe as Director ...

Secretary of Energy Rick Perry announces High Performance Computing for Materials Programme to help industry develop new, improved materials for severe environments ...

Quantum computing

Cost-effective quantum moves a step closer ...

Researchers demonstrate quantum teleportation of patterns of light ...

Focus on Europe

DeepL anchors neural machine translator at Verne Global's HPC-optimised data centre ...

Intel awards Paderborn University a cluster fueled by Xeon processors and Intel Arria 10 FPGAs ...

A new way to enhance the capacity of memory devices ...

Middleware

Bright Computing announces support for Ubuntu ...

Altair extends its strategic relationship with HPE ...

Hardware

Mellanox appoints Shlomit Weiss to Senior Vice President of Silicon Engineering ...

Japan Advanced Institute of Science and Technology puts Cray XC40 supercomputer into production ...

MemComputing compute engine rivals supercomputer processing speeds ...

Japan's Yokohama City University selects Cray XC50-AC supercomputer for life sciences research ...

Preferred Networks launches one of Japan's most powerful private sector supercomputers ...

Cray awarded $48 million contract from the Korea Institute of Science and Technology Information ...

Supermicro launches new 6U SuperBlade disaggregated server systems supporting rack scale design and free air cooling ...

Applications

Berkeley Lab cosmology software scales up to 658,784 Knights Landing cores ...

Multiscale simulations help predict unruly plasma behaviour ...

The Cloud

Oracle's new SPARC systems deliver 2-7x better performance, security capabilities, and efficiency than Intel-based systems ...