Physicists teleport quantum bits over long distance
Last Updated: Wednesday, February 5, 2003 | 12:20 PM ET
CBC News
Related
External Links
- teleportation study: Nature (in pdf format)
- Nature (in pdf format) Prof. Gisin's Web page: University of Geneva
(Note: CBC does not endorse and is not responsible for the content of external sites - links will open in new window)
The teleportation feat sounds magical and has set a long-distance record.
Teleporting an object involves gathering detailed information about its subatomic particles and transmitting this information to recreate the object perfectly. The original is dissolved in the process.
Australian scientists teleported a laser last year
- FROM JUNE 17, 2002: Scientists successfully teleport beam of light
Gisin likens the process to sending a fax, except the object never exists anywhere between the source and the receiver.
Unfortunately for anyone hoping for Scotty to beam them up like on Star Trek, so far teleportation only works on a quantum scale, not for everyday life.
For now, physicists can't even teleport atoms, never mind molecules.
"I think one has to realize that a molecule for us physicists is already a very complicated object," Gisin told CBC Radio's As It Happens.
For instance, a pen may seem like a simple object. "From a physicist's point of view, there are so many atoms in a pen that it is already beyond any foreseeable technology to teleport a pen," he added.
Although the technology won't help you beat traffic, it may come in handy as a defence against spies.
If information were encrypted using quantum cryptography, then sending information would be completely secure.
A spy couldn't get hold of data while it is being sent, because it wouldn't exist in between the sender and receiver, Gisin said.
The study appeared in the Jan. 30 issue of the journal Nature.
Share Tools
Top News Headlines
- Teen struck by lightning in Ottawa dies
- The victim of a Friday lightning strike during a storm in east Ottawa has died, CBC News has learned. more »
- Montreal protesters march in peaceful defiance
- The clanging of pots and pans sounded throughout Montreal's downtown core Saturday night and into early Sunday morning, as thousands of protesters marched on in peaceful — but loud — defiance of Bill 78. more »
- Outrage grows over Syria killings
- The deaths in Syria of over 90 people, including at least 32 children, has sparked international outrage and raised fears that the international peace plan is in tatters. more »
- Missing Winnipeg children found in Mexico
- Two Winnipeg children reported missing and possibly in Mexico have been found alive, according to unofficial reports from an agency that works to find missing people. more »
Latest Health News Headlines
- Alcohol addiction team wants higher energy drink prices
- Mixing alcohol with caffeine-rich energy beverages is a trend that is continuing to rise in Canada, despite repeated warnings that the combination is unsafe, a new report warns. more »
- How curry spice helps the immune system kill bacteria
- A spice used in curry dishes helps to prevent infection and now scientists think they've got a lead on how. more »
- Yellowknife toddlers catching hand, foot and mouth virus
- An outbreak of hand, foot and mouth disease in Yellowknife is causing many toddlers and their parents some major discomfort. more »
- Super microscope installed at University of Victoria
- What's heralded as the world's biggest microscope has arrived at the Unversity of Victoria, marking the culmination of a 10-year effort by one of the school's professors. more »
FEATURED HEALTH
- Teen struck by lightning in Ottawa dies
- Missing Winnipeg children found in Mexico
- Quebec tornadoes cause millions in damage
- Woman's remains found in hockey bag on Cape Breton river
- Pope's butler arrested in Vatican leaks scandal
- Montreal protesters march in peaceful defiance
- Everest team unable to bring down Toronto woman's body
- What a Greek euro exit could mean for Canada
- WWE apologizes to Brazil over Canadian's flag stomp


