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Title : Energy Can Be Teleported Over Long Distances, Say Quantum Physicists
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Energy Can Be Teleported Over Long Distances, Say Quantum Physicists

Japanese physicists did calculations demonstrating that energy can be transmitted over long distances by quantum teleportation.

The quantum teleportation, despite its name, does not mean instant at a distance transfer as necessarily require channel classic communication (not superlight) .At the same time the quantum state can be transmitted, and the concept of energy transfer in this way is not new, but previously, calculations showed that the possibility of such a transfer should decrease rapidly with distance . Consequently, if the transfer of the states of the atoms is performed for distances greater than 100 km, which was impossible with the energy that theory Masahiro Hotta 2008 allowed teleporting.

However, how you can use atoms states to transfer energy? Mr. Hotta is very inventive, and his scheme Alice (particle A) using the channel classic communication transmitted Bob (particles B) information to be extracted vacuum energy, which is based on the effect experimentally confirmed Casimir .

the idea of ​​Masahiro Hotta is that since the Nearby points in the quantum vacuum are quantum entangled , and Alice and Bob are close to each other, Alice is able to measure "their" local field and use the results of these calculations for information on the local field Bob. If this information is sent to Bob by classical communication channel, you can use it to develop a strategy of extracting energy from your local field, . The energy will extract the vacuum is always less than that used by Alice in performing baseline measurements. That is to say. thermodynamics remains in its own right, and Alice can "teleport" energy to Bob as data , which in turn will allow us to extract energy from the vacuum.

However, the degree of quantum entanglement between local fields of Bob and Alice decreases rapidly with increasing distance between them . Bob can recover the energy expended by Alice, and will be inversely proportional to the sixth power of the distance between them, ie teleportation power to any considerable distance will require cost comparable to electricity generation worldwide by year.

Now Mr. Hotta and colleagues Tohoku University (Japan) seem to have found a solution to this problem. Suggest the use of state empty compressed . It is identical to the normal quantum state, except for one small detail: the energy density of the area directly between Alice and Bob is much higher than in all other regions. As a result, the quantum entanglement can not be kept at a much greater distance than in the normal situation.

How is it possible to create squeezed states both in the laboratory for so long distances? The study authors believe that this is the place where quantum Hall effect can be used. It is produced in thin semiconductor wafers, which are affected by a strong magnetic field. Then, the electrons in them to flow freely in a direction along the edge of this sheet of semiconductor two-dimensional, which provides a channel quantum correlations, where a quantum entanglement. Mr. Hotta and his colleagues are working on the experimental realization of this scheme.

But the scientist emphasizes that experiments are pioneers of our species . In the early history of the universe when he underwent rapid expansion shortly after the Big Bang (inflation) must have occurred empty states compressed , accompanied by teleporting quantum presumably significant amounts of energy.

may appear that despite being important for theoretical quantum mechanics, work of Masahiro Hotta is not very useful practical implementation . Yes, the creation of quantum states requires a lot of energy, and therefore so far is not clear how practical and intensive energy quantum teleportation in quantum computers can be. But before this becomes a reality in the experiment, it is very difficult to judge the practical potential of such energy transfer.
Source: learning-mind.com

"Energy Can Be Teleported Over Long Distances, Say Quantum Physicists", article source: riseearth.com

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