Quantum information processing: A step closer

March 15, 2013

Researchers from Yale, Surrey, and Paris have made an important breakthrough towards 'quantum information processing', which promises to lead to massive information technology advances in the future.

Quantum information allows for the ultimate information in terms of accuracy, distance of coverage, knowledge when eavesdropped, simplicity in design of parallel systems and potential bandwidth.

In the current issue of Nature, researchers have demonstrated a new approach for the manipulation of quantum states of light.

Photons need to interact with each other sufficiently strongly for this to be achieved. This was made possible by engineering a device where photons interact with each other even when only a few photons are present but at the same time the fragile is not destroyed by the .

Dr. Eran Ginossar, one of the authors who conceived the idea, based at the Advanced Technology Institute (ATI) at the University of Surrey said: "What makes this discovery so exciting is that up to date it has been considered very difficult to engineer between localised photons.

"This will open up a way of encoding quantum information directly to photons in one of the most promising architectures of ".

Professor Ravi Silva, Director of the ATI, commented: "Previously envisaged bottlenecks to (QIP) over large areas and distances will now be enabled by this breakthrough.

"QIP is predicted to lead to enhance computing and communication even beyond the solutions to the spectrum crunch being resolved by the recently established 5G Innovation Centre at Surrey.

"It is a classic example of what is possible when theorists work closely with experimentalists, as in the case of the ATI and 5G Centres at Surrey. We hope to replicate the model in future doctoral training centres".

Explore further: Quantum technologies move a step closer with the demonstration of an 'entanglement' filter

More information: www.nature.com/nature/journal/v495/n7440/full/nature11902.html

Related Stories

Quantum cats are hard to see

December 16, 2011

Are there parallel universes? And how will we know? This is one of many fascinations people hold about quantum physics. Researchers from the universities of Calgary and Waterloo in Canada and the University of Geneva in Switzerland ...

Hi-fi single photons

October 4, 2012

Many quantum technologies—such as cryptography, quantum computing and quantum networks—hinge on the use of single photons. While she was at the Kastler Brossel Laboratory (affiliated with the Pierre and Marie Curie University, ...

Recommended for you

Probing the limits of wind power generation

September 2, 2015

(Phys.org)—Wind turbine farms now account for an estimated 3.3 percent of electricity generation in the United States, and 2.9 percent of electricity generated globally. The wind turbine industry is growing along all vectors, ...

2 comments

Adjust slider to filter visible comments by rank

Display comments: newest first

Quantus
1 / 5 (1) Mar 15, 2013
"It is a classic example of what is possible when theorists work closely with experimentalists..."

Yes, indeed.
christophe_galland1
3 / 5 (1) Mar 16, 2013
The paper is beautiful... Makes you want to work on circuit QED, so clean.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.