A team Chinese scientists announced that it held the first indisputable demonstration of the so-called "quantum advantage"(A term that replaced the older" quantum supremacy ")
ΕThis is the second time such an announcement has been made, as it was preceded by the American one Google in 2019, however, doubts had been expressed as to whether - indeed - it was a quantum supremacy. Other scientists at the time argued that a better classical algorithm that could surpass the quantum computer was possible. Google Sycamore.
As he writes RES-EAPThe researchers, led by Jian-Wei Pan of China University of Science and Technology in Hefei, published the paper in the journal "Science", in accordance with "Nature" and "New ScientistSaid that quantum calculations achieved in just a few minutes (200 seconds), with the help of laser beams, would take 600 million years to run on the world's most powerful supercomputer, the Japanese Fugaku, or two and a half billion years. half the age of the Earth!) to be executed on the most powerful Chinese supercomputer and No. 4 in the world, the Sunway TaihuLight.
«We have shown that we can use photons, the fundamental unit of light, to achieve quantum computing power far beyond classical computers.", Said Pan. This is the first time that quantum advantage has been achieved with the use of photonics.
For "important milestoneSaid the physicist Ian Wolsley of Imperial College London. He clarified, however, that - unlike the quantum computer Google Sycamore- the Chinese quantum algorithm can not be programmed, therefore it can not be used to solve practical problems, but this will probably be possible in the future, so that it can be used e.g. in quantum encryption or quantum chemistry.
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