Skip navigation.

Random Accesses

Dispatches from the bleeding edge

Posts tagged with "teleportation"

Physicists Propose Scheme for Teleporting Light Beams

, , ,

Usually when physicists talk about quantum teleportation, they're referring to the transfer of quantum states from one particle to another without a physical link. Now, physicists have investigated a slightly different form of teleportation, in which they teleport a quantum field, or an entire beam of light, from one location to another. This kind of "strong" teleportation is required for some quantum information applications, and could lead to the teleportation of quantum images.

They have proposed a scheme for teleporting a beam of light, including its fluctuations over time. They hope to show that it’s possible that a physical object (e.g. a quantum field) in one location could emerge at another location in the same quantum state, so that any conceivable measurement would yield the same result in both locations. In contrast, previous teleportation schemes do not seriously consider reproducing certain elements, such as temporal fluctuations.

Source: http://www.physorg.com/news166779852.html

A Quantum Memory Leap

, ,

In recent years, physicists have devised numerous ways to use the oddities of quantum mechanics to transmit and process information.

Now a team of researchers has announced an important step toward using this quantum information: the ghostly transfer of the quantum state of a single ion to another one a meter away. Since ions can store a quantum state for many seconds, this scheme for "quantum teleportation" could buy enough time for manipulations that allow long-distance communications that are immune to eavesdropping, or for computations that exploit the quantum mechanics to perform blazing fast calculations.

Source: http://www.technologyreview.com/computing/22013/?a=f

Researchers Demonstrate Quantum Teleportation and Memory in Tandem

, , , ...

In research that may be a key step toward real-life quantum communication—the transmission of information using atoms, photons, or other quantum objects—researchers created an experiment in which a quantum bit of information is transported across a distance of seven meters and briefly stored in memory. This is the first time that both quantum memory and teleportation, as the information transfer is known, have been demonstrated in a single experiment.

The experiment was performed by scientists from the University of Heidelberg in Germany, the University of Science and Technology of China, and the Atomic Institute of the Austrian Universities in Austria. The work was led by Prof. Jian-Wei Pan, a physicist at the University of Heidelberg.

Source: http://www.physorg.com/news120912180.html
January 2010
M T W T F S S
December 2009February 2010
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31