UAlberta physicists have developed a new technique for quantum memories, a crucial element for quantum communication
Physicists at the University of Alberta in Canada have developed a new way to build quantum memories, a method for storing delicate quantum information encoded into pulses of light.
“We’ve developed a new way to store pulses of light—down to the single-photon level—in clouds of ultracold rubidium atoms, and to later retrieve them, on-demand, by shining a ‘control’ pulse of light,” said Lindsay LeBlanc, assistant professor of physics and Canada Research Chair in Ultracold Gases for Quantum Simulation. LeBlanc conducted this research with postdoctoral fellow Erhan Saglamyurek.
Quantum memories are an important component of quantum networks, serving much the same role as hard drives in today’s computers. And the interest in storing quantum data efficiently and effectively is only growing, with practical applications including a quantum fibre-optic internet and other methods of secure communication.
“This experiment involved taking short pulses of light, in which we could encode quantum information, storing the light in the atoms, and then retrieving the original pulse that carries the same information,” explained Saglamyurek.
The novel method developed by LeBlanc and Saglamyurek, which is best-suited for key applications requiring high-speed operation, also has considerably fewer technical requirements than required in common quantum storage techniques. “The amount of power needed, for example, is significantly lower than current options, and these reduced requirements make it easier to implement in other labs,” added Saglamyurek. This discovery will allow for the crucial scaling up of quantum technologies, which has proven the biggest challenge to date in the emerging field.
The Latest on: Quantum hard drive
via Google News
The Latest on: Quantum hard drive
- Did Changing Sentiment Drive nLIGHT's (NASDAQ:LASR) Share Price Down A Worrying 59%?on August 16, 2019 at 4:09 am
Generally speaking, we'd consider a stock like this alongside loss-making companies, simply because the quantum of the profit is so low. It would be hard to believe in a more profitable future ...
- Quantum Sails Technology to Power Malizia II & Support Boris Herrmannon August 14, 2019 at 4:50 am
Aug. 14, 2019 /PRNewswire-PRWeb/ -- Quantum Sails is often selected by ... salinity, and pressure in hard-to-reach locations all over the world. This data will be available to scientists worldwide ...
- Security implications of quantum computingon August 11, 2019 at 2:52 pm
Technology companies, such as “Cambridge Quantum Computing,” “QxBranch” and “Rigetti,” are working hard to develop the hardware and ... make by undermining existing online security will drive ...
- Turning water into ice in the quantum realm: U of T, University of Colorado Boulder studyon August 6, 2019 at 8:58 am
The findings, she added, provide a new window into materials that are hard to investigate in the laboratory. “If you want to, for example, design a quantum communications ... and the interactions will ...
- Quantum dots capture speciation in sandplain fynbos on the West Coast of South Africaon August 5, 2019 at 9:17 am
Using quantum dots as a tool to trace the pollen ... the process of diverging may actually be quite common, but they are hard to find because you really need to know what to look for," he postulates.
- Quantum Announces DXi6900 Data Protection and Deduplication Applianceon July 20, 2019 at 5:00 pm
Quantum today announced the latest addition its DXi deduplication ... The DXi6900 uses a dual-controller architecture with 4TB hard drives for storage and is oriented towards midrange to enterprise ...
- Quantum’s HDDG Resultson June 18, 2019 at 4:27 am
COMPANY PRESS RELEASE: Quantum Corporation’s Hard Disk Drive Group announced financial results for the third quarter of fiscal 2001 of $709 million in revenue from shipments of 6.8 million units. The ...
- Quantum breakthrough could lead to ‘super-powered’ hard disk driveson April 26, 2019 at 2:17 pm
While the world’s focused on the latest Avenger’s flick, an international team of scientists have potentially unlocked the super powers of another familiar Marvel character: Magneto. Researchers from ...
- Surprising quantum effect in hard disk drive materialon April 26, 2019 at 5:26 am
Scientists have further explored a new effect that enhances their ability to control the direction of electron spin in certain materials. Their discovery may lead to more powerful and energy-efficient ...
via Bing News