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Primeur weekly 2011-10-31

Exascale supercomputing

PRACE partner Jülich joins XSEDE ...

The Cloud

Citrix NetScaler CloudConnectors extend network fabric to "last mile" Cloud services ...

Cloud computing: Gaps in the 'Cloud' ...

Final version of NIST Cloud computing definition published ...

Citrix CloudGateway delivers end user computing for the Cloud Era ...

Univa adds distributed automation to Xuropa Software Sales Cloud ...

EuroFlash

Impressions from the BiG Grid HPC Cloud Day in Amsterdam ...

OpenMP Architecture Review Board appoints New CEO ...

PRACE grants 721 million compute hours on Tier-0 systems to twenty-four European research projects and opens new call for Project Access ...

PRACE Tier-1 Workshop 2011 issues Call for Participation ...

USFlash

ARM discloses technical details of the next version of the ARM architecture ...

Grid Dynamics unveils DevOps Catalyst ...

SGI establishes new world record Apache Hadoop Benchmark ...

Cloudera and SGI partner to take high performance computing on Apache Hadoop to the next level ...

New IBM software helps analyze the world's data for health care transformation ...

Astronomers pin down galaxy collision rates by comparing Hubble images to supercomputer simulations ...

NASA Ames inks Lustre support deal with Whamcloud ...

Quantum computer components 'coalesce' to 'converse' ...

Idemitsu Petroleum Norge selects HP for business continuity ...

Targetbase adopts Oracle Exadata Database Machine for real-time data warehousing ...

Diamonds, silver and the quest for single photons ...

IBM launches Netezza appliance to help communications services providers analyze networks and gain consumer insight ...

Univa appoints veteran Head of Sales ...

SAS Alliances bring analytical innovation to businesses ...

New hybrid technology could bring 'quantum information systems' ...

New hybrid technology could bring 'quantum information systems'

28 Oct 2011 West Lafayette - The merging of two technologies under development - plasmonics and nanophotonics - is promising the emergence of new "quantum information systems" far more powerful than today's computers. The technology hinges on using single photons the tiny particles that make up light for switching and routing in future computers that might harness the exotic principles of quantum mechanics.

The quantum information processing technology would use structures called "metamaterials", artificial nanostructured media with exotic properties.

The metamaterials, when combined with tiny "optical emitters", could make possible a new hybrid technology that uses "quantum light" in future computers, said Vladimir Shalaev, scientific director of nanophotonics at Purdue University's Birck Nanotechnology Center and a distinguished professor of electrical and computer engineering.

The concept is described in an article to be published on October 28 in the journalScience. The article will appear in the magazine's Perspectives section and was written by Vladimir Shalaev and Zubin Jacob, an assistant professor of electrical and computer engineering at the University of Alberta, Canada.

"A seamless interface between plasmonics and nanophotonics could guarantee the use of light to overcome limitations in the operational speed of conventional integrated circuits", Vladimir Shalaev stated.

Researchers are proposing the use of "plasmon-mediated interactions", or devices that manipulate individual photons and quasiparticles called plasmons that combine electrons and photons.

One of the approaches, pioneered at Harvard University, is a tiny nanowire that couples individual photons and plasmons. Another approach is to use hyperbolic metamaterials, suggested by Zubin Jacob; Igor Smolyaninov, a visiting research scientist at the University of Maryland; and Evgenii Narimanov, an associate professor of electrical and computer engineering at Purdue. Quantum-device applications using building blocks for such hyperbolic metamaterials have been demonstrated in Vladimir Shalaev's group.

"We would like to record and read information with single photons, but we need a very efficient source of single photons", Vladimir Shalaev stated. "The challenge here is to increase the efficiency of generation of single photons in a broad spectrum, and that is where plasmonics and metamaterials come in."

Today's computers work by representing information as a series of ones and zeros, or binary digits called "bits".

Computers based on quantum physics would have quantum bits, or "qubits", that exist in both the on and off states simultaneously, dramatically increasing the computer's power and memory. Quantum computers would take advantage of a strange phenomenon described by quantum theory called "entanglement". Instead of only the states of one and zero, there are many possible "entangled quantum states" in between one and zero.

An obstacle in developing quantum information systems is finding a way to preserve the quantum information long enough to read and record it. One possible solution might be to use diamond with "nitrogen vacancies", defects that often occur naturally in the crystal lattice of diamonds but can also be produced by exposure to high-energy particles and heat.

"The nitrogen vacancy in diamond operates in a very broad spectral range and at room temperature, which is very important", Vladimir Shalaev stated.

The work is part of a new research field, called diamond photonics. Hyperbolic metamaterials integrated with nitrogen vacancies in diamond are expected to work as efficient "guns" of single photons generated in a broad spectral range, which could bring quantum information systems, he said.

Source: Purdue University

Back to Table of contents

Primeur weekly 2011-10-31

Exascale supercomputing

PRACE partner Jülich joins XSEDE ...

The Cloud

Citrix NetScaler CloudConnectors extend network fabric to "last mile" Cloud services ...

Cloud computing: Gaps in the 'Cloud' ...

Final version of NIST Cloud computing definition published ...

Citrix CloudGateway delivers end user computing for the Cloud Era ...

Univa adds distributed automation to Xuropa Software Sales Cloud ...

EuroFlash

Impressions from the BiG Grid HPC Cloud Day in Amsterdam ...

OpenMP Architecture Review Board appoints New CEO ...

PRACE grants 721 million compute hours on Tier-0 systems to twenty-four European research projects and opens new call for Project Access ...

PRACE Tier-1 Workshop 2011 issues Call for Participation ...

USFlash

ARM discloses technical details of the next version of the ARM architecture ...

Grid Dynamics unveils DevOps Catalyst ...

SGI establishes new world record Apache Hadoop Benchmark ...

Cloudera and SGI partner to take high performance computing on Apache Hadoop to the next level ...

New IBM software helps analyze the world's data for health care transformation ...

Astronomers pin down galaxy collision rates by comparing Hubble images to supercomputer simulations ...

NASA Ames inks Lustre support deal with Whamcloud ...

Quantum computer components 'coalesce' to 'converse' ...

Idemitsu Petroleum Norge selects HP for business continuity ...

Targetbase adopts Oracle Exadata Database Machine for real-time data warehousing ...

Diamonds, silver and the quest for single photons ...

IBM launches Netezza appliance to help communications services providers analyze networks and gain consumer insight ...

Univa appoints veteran Head of Sales ...

SAS Alliances bring analytical innovation to businesses ...

New hybrid technology could bring 'quantum information systems' ...