Quantum IT has enormous potentialBut it faces a scalability problem. For such a machine to be useful in real terms, several quantum processors must be assembled in a single location. This increases the power of a processor but also its size, making it less practical and more delicate. Scientists work on a solution that looks like something in a science fiction series: connecting the nuclei distant to each other via “quantum teleportation” to create even more powerful machines.
The path to such a transmission of information begins to appear. Recently, a team of scientists from the University of Oxford was able to send the first wireless quantum algorithm between two distinct quantum processors. The two small cores took advantage of their unique nature, grouped their capacities and formed a higher computer to solve problems that none of them could solve independently.
The team, led by the student diploma Dougal Main, managed to obtain remote systems to interact with each other and share the logic doors using quantum entanglement. Thanks to this quantum mechanical phenomenon, a pair of linked particles, even from a distance, can share the same state and therefore transmit the same information. If one modifies the state, the other reflects it instantly.
Oxford scientists have used a quantum tangle to send basic information between computers almost instantly. When the data roamed long distances under this principle, “quantum teleportation” would have occurred. This should not be confused with the conventional idea of teleportation, which implies an immediate hypothetical exchange of matter in space. In the experience, the light particles remained in the same place, but the entanglement allowed computers to “see” the information of the other and to work in parallel.
According to the team’s research document published in NatureThe quantum teleportation of an algorithm was possible with the photons and with modules separated by two meters. The loyalty of information had a rate of 86%. The result of this distributed quantum computer architecture is good enough to be a viable path to large -scale technology and the Quantum.
Quantum teleportation demonstrations in computer contexts have already emerged, but have been limited to the transfer of states between systems. The trial of the University of Oxford is distinctive because it used teleportation to create interactions between distant nuclei. “This breakthrough allows us to effectively” connect “the various quantum processors in a single fully connected quantum computer,” said principal.
If the distributed quantum calculation technology continues to develop, the era of giant quantum machines can be behind us. The problem of scalability could potentially be resolved with more machines operating together by quantum teleportation. For the moment, a basic processor can manage 50 qubits, a quantum information unit. Some scientists believe that a machine having the capacity to deal with thousands or millions of qubits will be necessary to solve complex problems.
Even without tangle, quantum machines are already powerful enough to solve apparently impossible problems. Willow, Google’s quantum chip, recently resolved a reference task called random circuit sampling in five minutes; He would have taken up to 10 quadrillions of years for a conventional supercomputer obtaining the same result.
This story originally appeared on Wired in Españoland was translated from Spanish.
