Feeds

Japanese scientists cage light

Breakthrough for quantum computing

Boost IT visibility and business value

Scientists have used silicon crystals to trap light and slow it down to the lowest speed ever recorded in the material. The breakthrough is a step towards light-based storage for quantum computers.

Researchers at Japanese telco NTT used man-made photonic crystals, which contain nanoscale holes, to achieve the feat. The cavity which controlled the light was less than ten millionths of a metre long.

The photon-trapping set-up slowed the light down to just 5.8 kilometres per second - 50,000 times less than the speed of light in a vacuum - by actually trapping it in the cavity for a nanosecond.

Last year, a team at Harvard "froze light" to demonstrate how photons could be used to bear information in an optical computer, replacing electrons. The Japanese research adds the ability to trap them for RAM-style memory.

The power to control light is seen as a key development for quantum information and communication, which promises a step change in computing power because of the greater number of states a quantum information carrier can take than in current simple electron-driven microprocessors.

Current early applications of quantum information technology centre around cryptography. More here.

The research is due to be reported in the January edition of the journal Nature Photonics. ®

Boost IT visibility and business value

More from The Register

next story
Pay to play: The hidden cost of software defined everything
Enter credit card details if you want that system you bought to actually be useful
HP busts out new ProLiant Gen9 servers
Think those are cool? Wait till you get a load of our racks
Shoot-em-up: Sony Online Entertainment hit by 'large scale DDoS attack'
Games disrupted as firm struggles to control network
Community chest: Storage firms need to pay open-source debts
Samba implementation? Time to get some devs on the job
Like condoms, data now comes in big and HUGE sizes
Linux Foundation lights a fire under storage devs with new conference
Silicon Valley jolted by magnitude 6.1 quake – its biggest in 25 years
Did the earth move for you at VMworld – oh, OK. It just did. A lot
prev story

Whitepapers

Gartner critical capabilities for enterprise endpoint backup
Learn why inSync received the highest overall rating from Druva and is the top choice for the mobile workforce.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.