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
- Irn-Bru maker AG Barr to take financial hit amid coronavirus sales wipe-outon April 8, 2020 at 2:02 am
“As a result, we expect there to be a material adverse impact to the group’s financial performance due to these fast changing circumstances, however at the current time the quantum of this remains ...
- Franco-Nevada Provides Portfolio and Corporate Updateson April 8, 2020 at 12:31 am
Franco-Nevada supports measures to address the COVID-19 pandemic and it is now into its fourth week of having its employees work remotely. There are no known cases in the Company. Franco- Nevada has a ...
- ‘Top Priority’ A walk through the ‘new IBM.’on April 1, 2020 at 10:37 am
The Watson Data Lab.
- How to buy a TV: everything you need to know to get a set that's right for youon April 1, 2020 at 4:17 am
Quantum Dots are tiny particles ranging from two to 10 nanometers in size ... recording from the TV’s tuners to an attached USB hard drive. Look for at least two, and ideally three USB ports. Most TVs ...
- A key development in the drive for energy-efficient electronicson March 30, 2020 at 1:30 pm
Those zeroes and ones can be represented or stored on the hard disc by changes in the polarity of tiny magnetized regions on the disc. With quantum technology, spin capacitors could write ... A key ...
- Tech reality check: business must move beyond the hype on digital technologyon March 27, 2020 at 8:34 am
Next on businesses’ investment horizon are technologies at the cutting edge of innovation: distributed ledger technology (DLT) like blockchain, artificial intelligence (AI), and quantum computing ...
- How Coherent Ising Machines can solve real-world problemson March 27, 2020 at 6:33 am
This is to develop Coherent Ising Machines, devices for solving computationally hard optimization problems ... and ultrafast laser sources in order to drive scaling and performance improvements.
- 'Picard' Season Finale Deaths Change 'Star Trek' Foreveron March 26, 2020 at 6:15 am
Picard,' "Et in Arcadia Ego, Part 2," major character deaths forge a new future for the United Federation of Planets.
- Study unveils gapless ground state in an archetypal quantum kagomeon March 18, 2020 at 6:30 am
Ferromagnetism underpins the functioning of several everyday objects, including compasses, fridge magnets and hard drives ... magnetism and let more exotic quantum states emerge.
via Bing News