Chinese scientists were able to create a superconducting quantum computer, which they called the most powerful in the world. An article about this was published on the ArXiv preprint portal.
A two-dimensional quantum computer consists of 66 qubits, but to solve the problem of sampling the output distribution of random quantum computer circuits, scientists used only 56 qubits. According to the developers, the computer coped with this task in 1.2 hours, while the most modern computer would take eight years.
In 2019, Google announced that its Sycamore quantum computer, with a 53-qubit processor, was able to solve a problem that a conventional computer would have done in 10,000 years. In June 2020, Honeywell created a 64-qubit quantum processor.
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