{"id":32860,"date":"2020-12-04T17:32:28","date_gmt":"2020-12-04T15:32:28","guid":{"rendered":"https:\/\/forklog.com\/en\/?p=32860"},"modified":"2025-08-28T10:49:12","modified_gmt":"2025-08-28T07:49:12","slug":"china-says-it-has-built-the-worlds-most-powerful-quantum-computer","status":"publish","type":"post","link":"https:\/\/u1f987.com\/en\/china-says-it-has-built-the-worlds-most-powerful-quantum-computer\/","title":{"rendered":"China says it has built the world’s most powerful quantum computer"},"content":{"rendered":"

A group of Chinese researchers has built a prototype quantum computer that processes data 10 billion times faster than Google’s 53-qubit device. The results were published in the journal Science<\/a>.<\/p>\n

<\/p>\n

The Jiuzhang supercomputer consists of an array of optical devices that move photons around themselves. It includes light sources, hundreds of beam splitters, dozens of mirrors, and a multitude of photon detectors. In tests, up to 76 photons were achieved.<\/p>\n

In 200 seconds, the device can perform a calculation that would take a conventional computer more than half a billion years. Scientists dubbed this event “quantum supremacy” \u2014 earlier it had been achieved in 2019 on Google’s supercomputer.<\/p>\n

\n

“A quantum computing breakthrough is like a threshold. It proves that if a new quantum computer prototype surpasses the strongest traditional one in certain tasks, then breakthroughs can occur in many other areas,” said Professor Lu Chaoyan of the University of Science and Technology of China.<\/p>\n<\/blockquote>\n

The operation of quantum computers is based on the principle of superposition, and instead of bits, quantum bits (qubits) are used. Some researchers have described it as a real threat to the blockchain technology underlying cryptocurrencies.<\/p>\n

\n

When will Bitcoin be cracked, or how real is the threat from quantum computers<\/p>\n<\/blockquote>\n