China

China surpasses the United States and acquires the world’s fastest computers

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Countries worldwide are developing new supercomputers to get an advantage in the competition for the most powerful computers. In quantum computing, countries like the United States and China have been contending for the title of nations with the most powerful quantum supercomputers, which is also increasing at a rapid pace. Two new strong supercomputers in China’s arsenal have given them a significant advantage over their rival, including the United States.

China has gained a quantum advantage in the battle to construct the most powerful quantum computers thanks to two new supercomputers, Zuchongzhi 2.1 and Jiuzhang 2.0. Instead of manipulating ones and zeros (or bits), quantum bits (or qubits) are used in these computers, representing both one and zero simultaneously.

USTC researchers constructed the quantum computers, which will give China an advantage in superconducting quantum computing and photonic quantum computing, according to a recent report in Global Times. The following chart shows how these two supercomputers stack up against the world’s best.

One of the next generations of quantum supercomputers is Zuchongchi 2.1, and it has 66 programmable qubits. It’s 100 times faster than Google’s Sycamore supercomputer and 10 million times faster than the world’s fastest supercomputer performing calculations. Thus, the Zuchongchi 2.1 has cemented its status as the world’s most powerful quantum computer.

It’s a similar story for Jiuzhang 2.0, with 113 detected photons above the initial Jiuzhang’s 76, and is currently in the prototyping stage. Compared to today’s fastest supercomputer, the photonic quantum computer can now conduct the Gaussian Boson Sampling up to one septillion times quicker with the improved version.