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Primeur weekly 2011-05-16

EuroFlash

Jülich makes a crutial step towards Exascale computer with the introduction of hybrid clusters using Tesla 20-series GPU's ...

Cray signs contract to upgrade and expand the Cray XE6 supercomputer at the University of Edinburgh ...

Cray reports first quarter 2011 financial results ...

Electromechanics also operates at the nanoscale ...

ICM selects IBM to fuel national science ...

USFlash

Carbon, carbon, everywhere; But not from the Big Bang ...

Cisco Networking Solutions increase security and mobility with Cloud services for branch offices ...

Xerox and Cisco to form alliance to deliver Cloud services; Combine network intelligence and print management ...

Cray and Sandia establish a Supercomputing Institute for Learning and Knowledge Systems ...

EMC Isilon delivers world's largest single file system for big data ...

EMC and Box deliver enterprise content management mobility through the Cloud ...

EMC enables service providers to accelerate customers' journey to Cloud computing ...

EMC delivers "Cloud to Ground" root-cause analysis for data centres ...

EMC delivers Hadoop 'big data' analytics to the enterprise ...

New EMC Ionix UIM software simplifies Cloud infrastructure management ...

EMC connects VNX to the Cloud with new Cloud Tiering Appliance ...

Graphene optical modulators could lead to ultrafast communications ...

HP puts data storage on a diet and guarantees capacity reduction ...

HP launches high-performance FlexNetwork solutions for video and mobile computing ...

HP readies enterprises for the future with FlexNetwork architecture ...

IBM delivers technology to help clients protect and retain "Big Data" ...

Primerica selects new IBM zEnterprise mainframe server for smarter infrastructure ...

Proton dripping tests a fundamental force in nature ...

Raritan's data centre energy management software gets a new dashboard with forecasting tools and gauges to track and visualize key energy metrics ...

Red Hat revolutionizes the private and hybrid Cloud market ...

Rice doubles supercomputing capacity ...

Student, 16, invents new drug cocktail to fight cystic fibrosis, wins Canadian biotech challenge ...

Electromechanics also operates at the nanoscale

9 May 2011 Gothenburg - What limits the behaviour of a carbon nanotube? This is a question that many scientists are trying to answer. Physicists at University of Gothenburg, Sweden, have now shown that electromechanical principles are valid also at the nanometre scale. In this way, the unique properties of carbon nanotubes can be combined with classical physics - and this may prove useful in the quantum computers of the future.

"We have been studying carbon nanotubes theoretically, in order to see how they behave when they are stimulated to behave according to the laws quantum mechanics. The results provide a completely new platform for scientists to stand on", stated Gustav Sonne of the Department of Physics at the University of Gothenburg.

Every day we use a number of different micro-electromechanical components for various forms of detection, to determine whether a certain process has taken place or whether a certain substance is present. These cannot be detected without instruments. One example is the detection of rapid accelerations that is used to activate the airbag in a car during an accident. What all of these components have in common is that they combine mechanical and electronic properties in order to react to external stimuli.

Gustav Sonne has taken research down to a whole new dimension - from the micrometer scale to the nanometer scale - and he has studied the younger brothers of these components: nano-electromechanical systems. The studies have been based on tiny nanotubes suspended between two electrical contacts. He has subsequently calculated how small vibrations in the suspended tubes can be coupled to a current that is led through them.

"Our research has focussed mainly on how these systems, which consist of a tiny, super-light mechanical oscillator (the suspended nanotube), can be described in quantum mechanical terms, and what effects this has on the measurements we can carry out. We have been able to demonstrate a number of new mechanisms for electromechanical coupling that should be possible to observe experimentally. This, in turn, may lead to extremely exotic physical phenomena in these structures, phenomena which may be of interest for research into quantum computers, and other fields."

Interest in nanotubes is based on their outstanding properties: they are among the strongest materials known, weigh next to nothing, and have extremely high conductivity for both electric currents and heat. Carbon nanotubes can be used to manufacture composite materials that are several orders of magnitude stronger than currently available materials.

The thesis "Mesoscopic phenomena in the electromechanics of suspended nanowires" was successfully defended in the Department of Physics. Supervisor is associate professor Leonid Gorelik.

Source: University of Gothenburg

Back to Table of contents

Primeur weekly 2011-05-16

EuroFlash

Jülich makes a crutial step towards Exascale computer with the introduction of hybrid clusters using Tesla 20-series GPU's ...

Cray signs contract to upgrade and expand the Cray XE6 supercomputer at the University of Edinburgh ...

Cray reports first quarter 2011 financial results ...

Electromechanics also operates at the nanoscale ...

ICM selects IBM to fuel national science ...

USFlash

Carbon, carbon, everywhere; But not from the Big Bang ...

Cisco Networking Solutions increase security and mobility with Cloud services for branch offices ...

Xerox and Cisco to form alliance to deliver Cloud services; Combine network intelligence and print management ...

Cray and Sandia establish a Supercomputing Institute for Learning and Knowledge Systems ...

EMC Isilon delivers world's largest single file system for big data ...

EMC and Box deliver enterprise content management mobility through the Cloud ...

EMC enables service providers to accelerate customers' journey to Cloud computing ...

EMC delivers "Cloud to Ground" root-cause analysis for data centres ...

EMC delivers Hadoop 'big data' analytics to the enterprise ...

New EMC Ionix UIM software simplifies Cloud infrastructure management ...

EMC connects VNX to the Cloud with new Cloud Tiering Appliance ...

Graphene optical modulators could lead to ultrafast communications ...

HP puts data storage on a diet and guarantees capacity reduction ...

HP launches high-performance FlexNetwork solutions for video and mobile computing ...

HP readies enterprises for the future with FlexNetwork architecture ...

IBM delivers technology to help clients protect and retain "Big Data" ...

Primerica selects new IBM zEnterprise mainframe server for smarter infrastructure ...

Proton dripping tests a fundamental force in nature ...

Raritan's data centre energy management software gets a new dashboard with forecasting tools and gauges to track and visualize key energy metrics ...

Red Hat revolutionizes the private and hybrid Cloud market ...

Rice doubles supercomputing capacity ...

Student, 16, invents new drug cocktail to fight cystic fibrosis, wins Canadian biotech challenge ...