This new startup has built a record-breaking 256-qubit quantum computer

In 2019, Google announced that its 53-qubit machine had achieved quantum supremacy by performing a task that could not be managed by a congress computer, but IBM disputed this claim. Same year, IBM launches 53-bit quantum computer. in 2020 ionQ It unveiled a 32-qubit system that the company says is “the world’s most powerful quantum […]

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