Energy Teleportation Overcomes Distance Limit. Teleportation is the transfer of an object from one point in the universe to another without travelling through the space in between. It is common practice in many labs around the world. Since the early 90s, physicists have used it to teleport increasingly complex objects starting with photons and more recently with atoms and ions. But that’s just the beginning. Back in 2010, we looked at the extraordinary work of Masahiro Hotta at Tohoku University in Japan who has worked out that it ought to be possible to teleport energy too.
But energy teleportation has an important limitation–the distance over which it can be sent. But now he and a couple of mates say they’ve discovered a way round this limitation that allows energy to be teleported over almost any distance. First some background. Instead, physicists think of it as a maelstrom of virtual quantum particles and antiparticles constantly leaping in and out of existence. Deterministic quantum teleportation between distant atomic objects : Nature Physics.
Affiliations Niels Bohr Institute, Copenhagen University, Blegdamsvej 17, 2100 Copenhagen, Denmark H. Krauter, D. Salart, J. M. Petersen, Heng Shen & E. S. Polzik ICFO-Institut de Ciències Fotòniques, Mediterranean Technology Park, 08860 Castelldefels (Barcelona), Spain C. Contributions H.K., D.S., J.M.P., H.S. and T.F. performed the experiment. Competing financial interests The authors declare no competing financial interests.
Author details H. Information teleportation goes large-scale. Quantum teleportation of information between quantum objects, like photons, is so well-understood that it’s almost routine. Now, an international physicists is claiming to have carried out the same trick in the macro universe. If the experiment can be replicated, it will be an impressive trick. The scientists, led by Jian-Wei Pen of the University of Science and Technology in Hefei in China, say they’ve teleported quantum state information between ensembles of 100 million rubidium atoms. With a radius of 1 mm across, that’s large enough to be seen with the naked eye. There’s a good reason for wanting to teleport state between macro objects: they stay where they’re put. Photons, on the other hand, are always on the road, so to speak (unless you apply tricks such as “slow light” to them).
That makes a group of atoms much more useful than photons for applications like quantum memory. The storage lifetime of spin states in the ensembles Pen’s group used was 129 microseconds. Quantum Teleportation Between Atomic Systems Over Long Distances. Researchers have been able to teleport information from light to light at a quantum level for several years. In 2006, researchers at the Niels Bohr Institute succeeded in teleporting between light and gas atoms. Now the research group has succeeded in teleporting information between two clouds of gas atoms and to carry out the teleportation -- not just one or a few times, but successfully every single time.
The results are published in the scientific journal, Nature Physics. "It is a very important step for quantum information research to have achieved such stable results that every attempt will succeed," says Eugene Polzik, professor and head of the research center Quantop at the Niels Bohr Institute at the University of Copenhagen. The experiments are conducted in the laboratories of the research group in the basement under the Niels Bohr Institute.
The gas now emits photons (light particles) containing quantum information. New method. Researchers Teleport 10,000 Bits of Information in 1 Second. For the first time, researchers have teleported 10,000 bits of information per second from point A to point B across a distance of about six millimeters and inside a solid state circuit, similar to a computer chip. Although the accomplishment differs from teleporting mass, like a person — such as that seen on science fiction shows like Star Trek — the remarkable feat demonstrates what could be possible with a quantum computer. The scientists, from the Swiss Federal Institute of Technology (ETH) in Zurich, report their findings in this week’s issue of Nature. In their experiment, the team spaced three micron-sized electronic circuits on a seven-by-seven-millimeter computer chip. Two of the circuits worked as a sending mechanism, while the other served as the receiver.
The scientists cooled the chip to near absolute zero and ran a current through the circuits. Specifically, the qubits in the sender circuit became entangled with those in the receiving circuit. Credit: iscatel / Fotolia. Teleportation just got easier—but not for you, unfortunately. Thanks to two studies published in Nature last Thursday, the chance of successful teleportation has considerably increased. Which is a good thing, right? Whether or not you've ever been on a long-haul flight, you've probably fantasised about being able to magically disappear from one place and reappear in another.
And a natural question for a physicist is whether there is any way to achieve this in practice. In fact, something known as "quantum teleportation" became a reality in 1997. This first demonstration was for particles of light (photons). Since then, physicists have also applied teleportation to other very small things, for example single atoms. So when can we expect to just teleport ourselves to our chosen destination? The first step to teleporting a person is measuring and recording the position, direction of motion and energy of every particle in the body, which would require more data storage than will ever be available – much, much more.
Knowing enough – but not too much. Mathematical breakthrough sets out rules for more effective teleportation. For the last ten years, theoretical physicists have shown that the intense connections generated between particles as established in the quantum law of ‘entanglement’ may hold the key to eventual teleportation of information. Now, for the first time, researchers have worked out how entanglement could be ‘recycled’ to increase the efficiency of these connections.
Published in the journal Physical Review Letters, the result could conceivably take us a step closer to sci-fi style teleportation in the future, although this research is purely theoretical in nature. The team have also devised a generalised form of teleportation, which allows for a wide variety of potential applications in quantum physics. Once considered impossible, in 1993 a team of scientists calculated that teleportation could work in principle using quantum laws. Quantum teleportation harnesses the ‘entanglement’ law to transmit particle-sized bites of information across potentially vast distances in an instant.