Chinese scientists prepare large-scale light quantum computing chips
Chinese researchers prepared large-scale light quantum chips and successfully performed an important analog quantum computation demonstration.
According to a study published in the latest issue of the "Scientific Progress" magazine, Shanghai Jiaotong University's Jin Xianmin team produced a 49x49 light quantum computing chip using "femtosecond laser direct writing" technology. Correspondent author Kim Hyun-min told Xinhua News Agency reporters that this is the world's largest light quantum computing chip.
The researchers used this chip to demonstrate an algorithmic kernel "quantum random walk" that simulates quantum computation. Kim Hyun-min said that when this quantum evolution system is sufficiently large and can flexibly design its structure, it can achieve a variety of algorithms and computational tasks, performing far better than traditional computers.
In recent years, news about general-purpose quantum computers has often been seen in newspapers. IBM (International Business Machines), Google, and Intel are racing to announce higher levels of quantum bit numbers, but dozens or more of quantum bit numbers. Unable to be fully interconnected, not accurate enough, and difficult to correct, general-purpose quantum computing remains elusive.
Kim Hyun-min said that analog quantum computing is different from general-purpose quantum computing in that it can directly build quantum systems without relying on complex quantum error correction like general-purpose quantum computing. Once a quantum physics system that can be prepared and controlled reaches a new standard, it can be directly used to explore New physics and advancing beyond the traditional computer's absolute computing power on specific issues. Chinese laser manufacturers
According to a study published in the latest issue of the "Scientific Progress" magazine, Shanghai Jiaotong University's Jin Xianmin team produced a 49x49 light quantum computing chip using "femtosecond laser direct writing" technology. Correspondent author Kim Hyun-min told Xinhua News Agency reporters that this is the world's largest light quantum computing chip.
The researchers used this chip to demonstrate an algorithmic kernel "quantum random walk" that simulates quantum computation. Kim Hyun-min said that when this quantum evolution system is sufficiently large and can flexibly design its structure, it can achieve a variety of algorithms and computational tasks, performing far better than traditional computers.
In recent years, news about general-purpose quantum computers has often been seen in newspapers. IBM (International Business Machines), Google, and Intel are racing to announce higher levels of quantum bit numbers, but dozens or more of quantum bit numbers. Unable to be fully interconnected, not accurate enough, and difficult to correct, general-purpose quantum computing remains elusive.
Kim Hyun-min said that analog quantum computing is different from general-purpose quantum computing in that it can directly build quantum systems without relying on complex quantum error correction like general-purpose quantum computing. Once a quantum physics system that can be prepared and controlled reaches a new standard, it can be directly used to explore New physics and advancing beyond the traditional computer's absolute computing power on specific issues. Chinese laser manufacturers
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