A programmable quantum computer based on superconducting qubits, created in China, is considered the most
Scientists have published the results of their work in the arXiv repository.
Diagram of a two-dimensional superconducting qubit-chip. Image: University of Science and Technology of China
Zuchongzhi is a two-dimensional programmablesuperconducting quantum processor. The developers provide that it can combine up to 66 qubits, but to demonstrate the capabilities of a quantum system, scientists limited themselves to 56 qubits. The computer was tasked with simulating random quantum circuits. How quickly a task is completed depends on the number of qubits. The more of them, the better the computer will cope.
The Zuchongzhi quantum system producedsimulation of random quantum chains in 1.2 hours. An ordinary supercomputer, even the most powerful one, will take at least eight years to compute a huge number of options. Zuchongzhi demonstrates an obvious quantum superiority that opens up incredible prospects for us.
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Earlier, in 2019, Google announcedachieving quantum supremacy by creating the Sycamore processor. It has a total of 54 qubits. The problem solved by the Chinese Zuchongzhi is almost 100 times more difficult than the one set for Google’s quantum processor.
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