Chinese researchers have proven what they claim to be the most powerful quantum computer in the world. In order to prove how fast the supercomputer is, the researchers completed a complex calculation, and a typical supercomputer takes about eight years to complete in more than an hour.
According to reports, the Zu Chongzhi quantum computer is a 66-qubit machine ZME Science. Compare, Google’s Sycamore chip has 53 qubits, while IBM’s Q System One chip has 20 qubits. It is not easy to load qubits into a chip and create a quantum mechanical superposition effect, but it is even more difficult to ensure that they work properly (without errors). For this reason, 66 qubits is an achievement.In addition, adding a few qubits to a quantum CPU will increase its performance exponentially
Quantum computer chips must be cooled to 273.15ºC and must be maintained at this temperature, which makes it more difficult to build and use quantum computers. Therefore, quantum computers are currently mainly used for high-performance computing experiments by researchers and high-tech giants.
The new Zu Chongzhi processor is more versatile than its predecessor Jiuzhang Quantum Chip. First, it is more programmable. Secondly, it is significantly more powerful. The researchers built a new quantum processor to perform random quantum circuit sampling tasks, which was completed in 1.2 hours. It would take unreasonable time to complete the same task on a classic supercomputer.
Google’s Sycamore quantum computing processor Having 53 qubits (pictured) is considered the first term to achieve so-called quantum hegemony, which is used to describe a quantum chip that can solve tasks that a typical supercomputer cannot handle in any reasonable time. Google’s Sycamore is closely followed by the nine chapters of 53 qubits. The processor completed a complex task in 200 seconds. The same task will take about 2.5 billion years to complete the Taihuzhiguang supercomputer.