/ News
HOW PHYSICISTS QUANTUM TELEPORTED INFORMATION OVER 62 MILES
Teleportation isn’t real, at least not as it’s depicted in fiction. No one has ever made a material object -- be it Harry Potter or Captain Kirk -- physically disappear from one location and reappear elsewhere. But information … that’s a different story.
This week, scientists set a new record for quantum teleportation distance, instantaneously sending a message from one particle of light to another particle at the end of an optical fiber more than 62 miles (100 kilometers) long. The quantum memo moves from one particle to the other without actually traveling through the space between them.
Developed by a researcher at a Japanese telecommunications company, the technology could boost efforts to protect information against hackers. It could be the basis of relay stations, called quantum repeaters, that securely teleport data over long distances when linked together.
The technology could boost efforts to protect information against hackers.
“One of the first applications that people see for this sort of thing is some kind of secure communications link,” says Martin Stevens, an electronics engineer at the National Institute of Standards and Technology in Boulder, Colorado, and member of Hiroki Takesue’s team, which published the research in the October issue of Optica.
As amazing as this all sounds, teleportation between far-flung particles has been done before. The current distance record, 88 miles, belongs to a team in Vienna that performed a teleportation using lasers shot between two of the Canary Islands at night.
Light beams in the open sky could be useful for quantum communications with satellites. But they’re not terribly practical for everyday use on the ground, because sending information that way requires a clear line of sight.
“If there’s something in the way that’s going to block the light, like a building, that’s a problem,” says Stevens. “In an environment like a city, it’s much more convenient to be able to used optical fiber buried underground.”
Forging long-distance links between light particles in fiber has proven challenging because light tends to get absorbed as it travels through fiber. Last year a group in Switzerland set the bar when they managed a 15-mile teleportation.
To break that record, Takesue’s team started with pairs of particles that had aspooky quantum connection to each other. The particles had been entangled, meaning that something happening to one particle could instantly change the behavior of the other, regardless of the distance between them. Even after the researchers sent one of the particles down 62 miles of spooled optical fiber, the spooky relationship remained intact.
A third particle from a laser pulsing in steady rhythm was then added into the mix. The researchers had encoded it with a single piece of binary data. Analogous to the one or zero stored in a bit in today’s computers, the pulse could be either exactly in time with the laser’s beat or delayed by a trillionth of a second.
That data particle then met up with one of the entangled particles (the one that didn't travel down the optical fiber). As the particles got mixed up together, the data sometimes transferred.. A quarter of the time, the data particle and its new friend ended up in opposite states: one on time, one delayed. When that happened, the entangled particle far away down the optical fiber instantly adopted the state of its partner, the state opposite to that of the data particle.
The detectors are kept a mere degree above absolute zero, colder than the surface of Pluto.
That part of the transfer was instantaneous. But reading the state of that faraway particle required an additional message sent at the speed of light, placing a limit on how quickly teleportation can be used to send information.
A proof-of-principle experiment, the research has a number of technological hurdles to address before it can be used in practical applications. For one thing, it only works if the detectors are kept a mere degree above absolute zero, colder than the surface of Pluto. That requires bulky, expensive refrigerators.
“Teleportation has been one of the sexiest terms to come out of quantum information, but we're not quite at the stage of seeing applications of this immediately,” says Aephraim Steinberg, a quantum physicist at the University of Toronto who was not involved in the new research.
But Steinberg and other researchers watching this and similar experiments being carried out around the world hope they will lead to a new way of communicating, and perhaps a quantum version of the Internet.
Source: http://www.popsci.com/how-physicists-set-new-world-record-for-quantum-teleportation
/ About us
Founded by Russian entrepreneur Dmitry Itskov in February 2011 with the participation of leading Russian specialists in the field of neural interfaces, robotics, artificial organs and systems.
The main goals of the 2045 Initiative: the creation and realization of a new strategy for the development of humanity which meets global civilization challenges; the creation of optimale conditions promoting the spiritual enlightenment of humanity; and the realization of a new futuristic reality based on 5 principles: high spirituality, high culture, high ethics, high science and high technologies.
The main science mega-project of the 2045 Initiative aims to create technologies enabling the transfer of a individual’s personality to a more advanced non-biological carrier, and extending life, including to the point of immortality. We devote particular attention to enabling the fullest possible dialogue between the world’s major spiritual traditions, science and society.
A large-scale transformation of humanity, comparable to some of the major spiritual and sci-tech revolutions in history, will require a new strategy. We believe this to be necessary to overcome existing crises, which threaten our planetary habitat and the continued existence of humanity as a species. With the 2045 Initiative, we hope to realize a new strategy for humanity's development, and in so doing, create a more productive, fulfilling, and satisfying future.
The "2045" team is working towards creating an international research center where leading scientists will be engaged in research and development in the fields of anthropomorphic robotics, living systems modeling and brain and consciousness modeling with the goal of transferring one’s individual consciousness to an artificial carrier and achieving cybernetic immortality.
An annual congress "The Global Future 2045" is organized by the Initiative to give platform for discussing mankind's evolutionary strategy based on technologies of cybernetic immortality as well as the possible impact of such technologies on global society, politics and economies of the future.
Future prospects of "2045" Initiative for society
2015-2020
The emergence and widespread use of affordable android "avatars" controlled by a "brain-computer" interface. Coupled with related technologies “avatars’ will give people a number of new features: ability to work in dangerous environments, perform rescue operations, travel in extreme situations etc.
Avatar components will be used in medicine for the rehabilitation of fully or partially disabled patients giving them prosthetic limbs or recover lost senses.
2020-2025
Creation of an autonomous life-support system for the human brain linked to a robot, ‘avatar’, will save people whose body is completely worn out or irreversibly damaged. Any patient with an intact brain will be able to return to a fully functioning bodily life. Such technologies will greatly enlarge the possibility of hybrid bio-electronic devices, thus creating a new IT revolution and will make all kinds of superimpositions of electronic and biological systems possible.
2030-2035
Creation of a computer model of the brain and human consciousness with the subsequent development of means to transfer individual consciousness onto an artificial carrier. This development will profoundly change the world, it will not only give everyone the possibility of cybernetic immortality but will also create a friendly artificial intelligence, expand human capabilities and provide opportunities for ordinary people to restore or modify their own brain multiple times. The final result at this stage can be a real revolution in the understanding of human nature that will completely change the human and technical prospects for humanity.
2045
This is the time when substance-independent minds will receive new bodies with capacities far exceeding those of ordinary humans. A new era for humanity will arrive! Changes will occur in all spheres of human activity – energy generation, transportation, politics, medicine, psychology, sciences, and so on.
Today it is hard to imagine a future when bodies consisting of nanorobots will become affordable and capable of taking any form. It is also hard to imagine body holograms featuring controlled matter. One thing is clear however: humanity, for the first time in its history, will make a fully managed evolutionary transition and eventually become a new species. Moreover, prerequisites for a large-scale expansion into outer space will be created as well.
Key elements of the project in the future
• International social movement
• social network immortal.me
• charitable foundation "Global Future 2045" (Foundation 2045)
• scientific research centre "Immortality"
• business incubator
• University of "Immortality"
• annual award for contribution to the realization of the project of "Immortality”.
/ Follow us at:
/ Contact:
For additional information, partnerships and sponsorship, contact:
info@2045.com
Media requesting information and interviews, contact PR@2045.com
LinkedIn
LiveJournal
Google
Twitter
Facebook
Я.ру
ВКонтакте
Mail.ru