Back to Table of contents

Primeur weekly 2017-09-18

Special

2017 - Another year on the Road to Exascale: The state of exascale progress today ...

Focus

ETP4HPC plays instrumental role in development of European exascale programme ...

Atos/Bull to provide customers with mix of processor architectures and new BXI interconnect ...

Quantum computing

IBM pioneers new approach to simulate chemistry with quantum computing ...

The dark side of quantum computers ...

Toward unbreakable encrypted messages ...

First on-chip nanoscale optical quantum memory developed ...

Focus on Europe

HPC Advisory Council and ISC Group announce the 2018 Student Cluster Competition ...

Digital Infrastructures for Research 2017 to announce Call for Abstracts ...

HPC alliance GW4 shortlisted for Times Higher Education award ...

New GPU power for machine learning and HPC at CSC Finland ...

Mexico launches HPC initiative for Energy Research and Development supported by BSC ...

Middleware

PGI 17.7 compilers for heterogeneous supercomputing now available ...

Hardware

Supermicro launches petabyte scale 1U server and JBOF ...

Packet partners with Arm to accelerate adoption of Armv8-A for data centre workloads ...

Xilinx, Arm, Cadence, and TSMC announce world's first CCIX silicon demonstration vehicle in 7nm process technology ...

Applications

Supercomputing power to study brain function ...

Julia joins Petaflop Club ...

BSC participates in eTRANSAFE, a project for new drug safety assessment and integrative data analysis research ...

NERSC supercomputers help Berkeley Lab scientists map key DNA protein complex ...

Study clarifies how neural nets think when processing language ...

Modelling a city's minuscule changes ...

The Cloud

Oracle joins the Cloud Native Computing Foundation ...

Dell EMC and IBM to offer VMware solutions on the IBM Cloud ...

VMware speeds customer time to value for SDDC and multi-Cloud management with new vRealize suite 2017 ...

Toward unbreakable encrypted messages

13 Sep 2017 Washington, D.C. - Chinese researchers recently announced a landmark advancement: They used a satellite orbiting Earth to beam pairs of quantum-entangled photons to two Tibetan mountaintops more than 700 miles apart. This distance blew the previous record out of the water. But according to an article inChemical & Engineering News(C&EN), the weekly newsmagazine of the American Chemical Society, this is only the beginning for quantum communication.

The idea behind quantum communication has been around since the 1960s. It involves using quantum-entangled photons to send encrypted messages. Messages are encoded through a method called quantum key distribution that enables the laws of physics to protect the information being delivered. This means if anyone intercepts and alters the message, the photons' properties will be changed as well, and this would be obvious to the recipient. But scientists are hindered by their ability to produce large numbers of entangled photons that can travel long distances. The Chinese satellite relied on an engineered crystal and laser to create the entangled photons, but the team only detected one pair of photons per 6 million pairs generated because of losses during transmission through the atmosphere.

While looking for more efficient photon sources, scientists have focused on single-photon emitters. Contenders include modified diamonds and quantum dots. The diamonds contain a "colour centre" defect, which means a glint of colour is produced when light passes through. The problem is that only a fraction of light escapes the crystal. Quantum dots are another option, but they either require impractical cryogenic temperatures to operate or perform inconsistently. Researchers are also investigating ways to transmit entangled photons on Earth using fiber optics, by generating single photons with carbon nanotubes. But further development is needed on all methods for quantum communications to become practical.

The article " Seeking materials to send unbreakable codes " is freely available.

Source: American Chemical Society

Back to Table of contents

Primeur weekly 2017-09-18

Special

2017 - Another year on the Road to Exascale: The state of exascale progress today ...

Focus

ETP4HPC plays instrumental role in development of European exascale programme ...

Atos/Bull to provide customers with mix of processor architectures and new BXI interconnect ...

Quantum computing

IBM pioneers new approach to simulate chemistry with quantum computing ...

The dark side of quantum computers ...

Toward unbreakable encrypted messages ...

First on-chip nanoscale optical quantum memory developed ...

Focus on Europe

HPC Advisory Council and ISC Group announce the 2018 Student Cluster Competition ...

Digital Infrastructures for Research 2017 to announce Call for Abstracts ...

HPC alliance GW4 shortlisted for Times Higher Education award ...

New GPU power for machine learning and HPC at CSC Finland ...

Mexico launches HPC initiative for Energy Research and Development supported by BSC ...

Middleware

PGI 17.7 compilers for heterogeneous supercomputing now available ...

Hardware

Supermicro launches petabyte scale 1U server and JBOF ...

Packet partners with Arm to accelerate adoption of Armv8-A for data centre workloads ...

Xilinx, Arm, Cadence, and TSMC announce world's first CCIX silicon demonstration vehicle in 7nm process technology ...

Applications

Supercomputing power to study brain function ...

Julia joins Petaflop Club ...

BSC participates in eTRANSAFE, a project for new drug safety assessment and integrative data analysis research ...

NERSC supercomputers help Berkeley Lab scientists map key DNA protein complex ...

Study clarifies how neural nets think when processing language ...

Modelling a city's minuscule changes ...

The Cloud

Oracle joins the Cloud Native Computing Foundation ...

Dell EMC and IBM to offer VMware solutions on the IBM Cloud ...

VMware speeds customer time to value for SDDC and multi-Cloud management with new vRealize suite 2017 ...