A group of scientists in China claim to have built the most powerful quantum computer in the world. According to the group, this new quantum computer outperforms the fastest supercomputers in the world in a minimum of one task. It is able to perform the task a 100 trillion times faster.
Google made a similar claim in 2019 stating that it had developed the first quantum computer that outperformed all the supercomputers in terms of quantum calculations. The group of Chinese scientists works at the University of Science and Technology of China in Hefei. They claimed that their new quantum computer, Jiuzhang, outperformed the one made by Google by 10 billion times. A portrayal of Jiuzhang and its accomplishment of computation was distributed December 3 in the diary Science.
Is the Chinese quantum computer really faster than a supercomputer?
If both the claims turn out to be true, it would make Jiuzhang one of the two quantum computers to hold quantum supremacy in the world. China has put resources vigorously in quantum computing, with Xi Jinping’s administration burning through US$10 billion on the nation’s National Laboratory for Quantum Information Sciences. The nation is likewise a world chief in quantum organizing, where information encoded utilizing quantum mechanics is sent across significant stretches.
The quantum computer developed in China makes use of optical circuits to solve problems. On the other hand, Google’s quantum computer, Sycamore, makes use of superconducting substances on a chip. Neither would be especially valuable all alone as a PC, and the Chinese gadget was worked to take care of only one kind of issue. To test Jiuzhang, the scientists relegated it a “Gaussian boson sampling” (GBS) task, where the PC processes the yield of an eccentric circuit that uses light. That yield is communicated as a rundown of numbers. (Light is made of particles called photons, which has a place with a class of particles called bosons.)
The amount of detectable photos pointed out the success of the test. Jiuzhang, which itself is an optical circuit, distinguished a limit of 76 photons in a single test and a normal of 43 over a few tests. Its computing time to create the rundown of numbers for each test run was around 200 seconds, while the quickest Chinese supercomputer, TaihuLight, would have taken 2.5 billion years to show up at a similar outcome. It highlights the device can do GBS 100 trillion times quicker than an old style supercomputer.