Quantum computing has it It has great potential, but it faces scalability issues. For such a machine to be practically useful, multiple quantum processors must be assembled in a single location. This increases the power and size of the processor, making it practical and delicate. Scientists are working on solutions that sound like a science fiction series. Connect remote cores together through quantum teleportation to create even more powerful machines.
The path to such information transmission is beginning to appear. Recently, a team of scientists at Oxford University was able to wirelessly transmit the first quantum algorithm between two separate quantum processors. The two small cores exploited their own nature, pooling their abilities and forming excellent computers to solve problems that neither of them could solve independently.
The team led by graduate student Dougal Main was able to interact with each other far-flung systems and share logic gates using quantum entanglement. Thanks to this quantum mechanical phenomenon, even in the distance, you can share the same state and send the same information. If one changes its state, the other immediately reflects it.
Oxford scientists used quantum entanglement to send basic information almost instantly between computers. Under this principle, it is said that “quantum teleportation” occurred when data traveled over long distances. This should not be confused with the traditional idea of teleportation with virtual immediate material exchange in space. In the experiment, light particles remained in the same place, but entanglement allowed the computer to “see” each other’s information and work in parallel.
According to a research paper by the team published in Nature, quantum teleportation of the algorithm was possible with photons and modules 2 meters apart. The percentage of information fidelity was 86%. The results of this distributed quantum computing architecture are sufficient to provide a viable path to large-scale technology and the quantum internet.
Demonstrations of quantum teleportation in computational contexts have appeared previously, but are limited to transferring states between systems. The Oxford University trial is distinctive because it uses teleportation to create distant nuclei interactions. “This breakthrough allows for the effective “connection” of various quantum processors to a single, fully connected quantum computer,” Main said.
As distributed quantum computing technology continues to develop, the age of huge quantum machines may lie behind us. The problem of scalability can potentially be solved by increasing number of machines working together through quantum teleportation. For now, a basic processor can process 50 qubits, which are units of quantum information. Some scientists estimate that a machine with the ability to process thousands or millions of qubits is needed to solve complex problems.
Without entanglement, quantum machines are already powerful enough to solve seemingly impossible problems. Willow, Google’s quantum chip, recently solved a benchmark task called random circuit sampling in 5 minutes. It took up to a 10/4 year for a traditional supercomputer to achieve the same results.
This story originally appeared in the wired Espanyol and is translated from Spanish.
