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Primeur weekly 2011-05-02

EuroFlash

Altair's PBS Professional added to Dell's high-performance computing solution portfolio ...

Research consortium led by University Bordeaux 1 chooses ClusterVision to deliver TOP500-class supercomputer ...

DEISA PRACE Symposium 2011 attracted over 200 participants from 26 countries ...

1,000th person trained in supercomputer techniques ...

USFlash

HP becomes SAP-certified global provider of Cloud services ...

L-3 Communications selects Digipede for high-throughput image processing Grid ...

Securities firm boosts data centre performance with solutions from HP ...

Mellanox introduces SwitchX with Virtual Protocol Interconnect technology ...

NASA Center for Climate Simulation doubles computational power for users ...

NNSA launches new advanced supercomputing website with a week of on-line features ...

NNSA announces new space debris modelling ...

PHH Corporation selects Oracle Exalogic Elastic Cloud and Oracle Exadata Database Machine as part of a complete Oracle technology solution for its next-generation Common Technology Platform ...

healthAlliance selects Oracle Exadata to deliver a shared services platform to five New Zealand District Health Boards ...

Indiana University supports researchers, inspires innovation and secures more research grants with web-based data environment ...

SOURCECORP BPS turns to Oracle Exadata Database Machine for improved performance and scalability of transactional content management solutions ...

WebNMS integrates MySQL and Oracle Database 11g to help communications service providers to achieve high scalability, performance and reliability ...

Platform Computing marks launch of Symphony 5.1 with significant momentum in financial services market ...

Diamonds shine in quantum networks ...

Sandia National Laboratories powers one of world's fastest, most energy efficient supercomputers with Oracle's Sun servers ...

TeraGrid: Paying it forward in the wake of disaster ...

Asia@home Hackfest videos are now available ...

Voxel enhances its Cloud hosting services by offering free SaaS application performance management from New Relic ...

SGI announces major upgrades to Rackable and CloudRack product families ...

Supermicro introduces supercompact, high-efficiency power supply ...

Supermicro's expanding product line ideal for next generation of embedded applications ...

Diamonds shine in quantum networks

26 Apr 2011 Calgary - When it comes to dreaming about diamonds, energy efficiency and powerful information processing aren't normally the thoughts that spring to mind. Unless, of course, you are a quantum physicist looking to create the most secure and powerful networks around.

Researchers at the University of Calgary and Hewlett Packard Labs in Palo Alto, California, have come up with a way to use impurities in diamonds as a method of creating a node in a quantum network. In addition to making powerful and secure networks, this discovery may also help sensitive measurements of magnetic fields and create new powerful platforms useful for applications in biology.

"Impurities in diamonds have recently been used to store information encoded onto their quantum state, which can be controlled and read out using light. But coming up with robust way to create connections needed to pass on signals between these impurities is difficult", stated Dr. Paul Barclay, who recently moved to Calgary to start labs at the University of Calgary in the Institute for Quantum Information Science and at the National Institute for Nanotechnology in Edmonton.

"We have taken an important step towards achieving this", added Paul Barclay. Dr. Barclay and colleagues Dr. Andrei Faraon, Dr. Kai-Mei Fu, Dr. Charles Santori and Dr. Ray Beausoleil from Hewlett Packard have published a paper on their research in the journalNature Photonics.

Impurities in diamonds are responsible for slightly altering the material's colour, typically adding a slight red or yellow tint. The "NV center" impurity, which consists of a nitrogen atom and a vacancy in otherwise perfect diamond carbon lattice, has quantum properties that researchers are learning to exploit for useful applications.

In principle, individual particles of light, photons, can be used to transfer this quantum information between impurities, each of which could be a node in a quantum network used for energy efficient and powerful information processing. In practice, this is challenging to demonstrate because of the small size of the impurities (a few nanometers) and the experimental complexity that comes along with studying and controlling several nanoscale quantum systems at once.

Researchers at Hewlett Packard Labs and Barclay, who worked on this research at HP and is now a professor in the Department on Physics and Astronomy at the University of Calgary, have created photonic "microring resonators" on diamond chips. These microrings are designed to efficiently channel light between diamond impurities, and an on-chip photonic circuit connected to quantum impurities at other locations on the chip.

In future work, this microring will be connected to other components on the diamond chip, and light will be routed between impurities.

"This work demonstrates the important connection between fundamental physics, blue sky applications, and near-term problem solving. It involves many of the same concepts being pushed by companies such as HP, IBM, and Intel who are beginning to integrate photonics with computer hardware to increase performance and reduce the major problem of heat generation", stated Paul Barclay.

The article, "Resonant enhancement of the zero-phonon emission from a colour centre in a diamond cavity", is written by Andrei Faraon, Kai-Mei Fu, Charles Santori and Ray Beausoleil (Hewlett Packard) and Paul Barclay (Hewlett Packard and University of Calgary), and is published in the recent on-line edition ofNature Photonics.
Source: University of Calgary

Back to Table of contents

Primeur weekly 2011-05-02

EuroFlash

Altair's PBS Professional added to Dell's high-performance computing solution portfolio ...

Research consortium led by University Bordeaux 1 chooses ClusterVision to deliver TOP500-class supercomputer ...

DEISA PRACE Symposium 2011 attracted over 200 participants from 26 countries ...

1,000th person trained in supercomputer techniques ...

USFlash

HP becomes SAP-certified global provider of Cloud services ...

L-3 Communications selects Digipede for high-throughput image processing Grid ...

Securities firm boosts data centre performance with solutions from HP ...

Mellanox introduces SwitchX with Virtual Protocol Interconnect technology ...

NASA Center for Climate Simulation doubles computational power for users ...

NNSA launches new advanced supercomputing website with a week of on-line features ...

NNSA announces new space debris modelling ...

PHH Corporation selects Oracle Exalogic Elastic Cloud and Oracle Exadata Database Machine as part of a complete Oracle technology solution for its next-generation Common Technology Platform ...

healthAlliance selects Oracle Exadata to deliver a shared services platform to five New Zealand District Health Boards ...

Indiana University supports researchers, inspires innovation and secures more research grants with web-based data environment ...

SOURCECORP BPS turns to Oracle Exadata Database Machine for improved performance and scalability of transactional content management solutions ...

WebNMS integrates MySQL and Oracle Database 11g to help communications service providers to achieve high scalability, performance and reliability ...

Platform Computing marks launch of Symphony 5.1 with significant momentum in financial services market ...

Diamonds shine in quantum networks ...

Sandia National Laboratories powers one of world's fastest, most energy efficient supercomputers with Oracle's Sun servers ...

TeraGrid: Paying it forward in the wake of disaster ...

Asia@home Hackfest videos are now available ...

Voxel enhances its Cloud hosting services by offering free SaaS application performance management from New Relic ...

SGI announces major upgrades to Rackable and CloudRack product families ...

Supermicro introduces supercompact, high-efficiency power supply ...

Supermicro's expanding product line ideal for next generation of embedded applications ...