Quantum Telecloning And 'The Enemy Within'

In science fiction, teleportation is not always perfect. Improperly maintained teleporters can result in "poor fidelity" during transmission - and a mess on the floor of the transporter room. In one celebrated instance, the use of the teleporter even involved creating a copy. The US Air Force has actually done a serious, scientific study of teleportation.


(Kirk vs. Kirk - who will win?)

In The Enemy Within, first broadcast in 1966, the transporter aboard the Enterprise malfunctions, creating a copy of Captain Kirk. The copy demonstrates less than 100% fidelity, however; it embodies only his most selfish and angry qualities.

The first experimental demonstration of quantum telecloning has just been accomplished by scientists at the University of Tokyo, the Japan Science and Technology Agency and the University of York. Telecloning is a combined achievement; it combines quantum teleportation with quantum cloning into a single step.

In ideal quantum teleportation, the original particle is destroyed and its exact properties are transmitted to a distant particle. In telecloning, the original is destroyed and its properties are sent to two distant particles with an accuracy of less than 100%. The Heisenberg principle limits cloning fidelity; researchers would otherwise be able to make enough clones to learn everything about the original particle.

In their telecloning experiment, researchers cloned a beam of laser light, transmitting its electric field amplitude and phase - but not its polarization - to two distant beams with 58% fidelity. The theoretical limit on the experiment was 66%.

This demonstration may cause problems in another field of application for quantum teleportation. Until now, quantum cryptography had offered a perfectly secure communication standard. Now, however, an enemy within your communication center might arrange to send a copy of the message to a distant eavesdropper.

For more information, see Deterministic Quantum-State Teleportation Achieved With High Fidelity and Quantum Dot Switches.

Read the Physics News update and press release on telecloning.

Scroll down for more stories in the same category. (Story submitted 2/16/2006)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Engineering ")

Has Climate Change Already Been Solved By Aliens?
'I had explained," said Nessus, "that our civilisation was dying in its own waste heat.' - Larry Niven, 1970.

Skin Electronics 3D Printed
'June's body is a tracery of lambent lines, like some arcane capillary circuitry...' - Paul Di Filippo, 1985

Super-Resolution Microscopy Provides '4D' Views
View the magnified interior of living cells.

Physicists Try To Turn Light Into Matter
If E=mc squared, then... m=E/c squared!

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Las Vegas Humans Ready To Strike Over Robots
'A worker replaced by a nubot... had to be compensated.'

You'll Regrow That Limb, One Day
'... forcing the energy transfer which allowed him to regrow his lost fingers.'

Elon Musk Seeks To Create 1941 Heinlein Speedster
'The car surged and lifted, clearing its top by a negligible margin.'

Somnox Sleep Robot - Your Sleepytime Cuddlebot
Science fiction authors are serious about sleep, too.

Real-Life Macau or Ghost In The Shell
Art imitates life imitates art.

Has Climate Change Already Been Solved By Aliens?
'I had explained," said Nessus, "that our civilisation was dying in its own waste heat.'

First 3D Printed Human Corneas From Stem Cells
Just what we need! Lots of spare parts.

VirtualHome: Teaching Robots To Do Chores Around The House
'Just what did I want Flexible Frank to do? - any work a human being does around a house.'

Messaging Extraterrestrial Intelligence (METI) Workshop
SF writers have thought about this since the 19th century.

Nanorobots Roam Your Bloodstream, Cleaning It
Too bad they won't have lasers, though...

Galini 3D Printed Sleeping Pod Tiny Houses
'The houses are prefabricated units...'

MIT Boffins Create Psychopath AI On Purpose
There's a lesson in this for neural net AI engineers everywhere.

Skin Electronics 3D Printed
'June's body is a tracery of lambent lines, like some arcane capillary circuitry...'

Artificial Sensory Neurons For Prosthetics, Robots
Great for humans and robots!

China Uses Artificial Intelligence To Grade Student Papers
Looks like the City Fathers are starting to take over China's education system.

Electronic Tongues Will Rule The Kitchen
'Install taste buds in the end of one tentacle...'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.