It's not about nano.
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Wukong chip is a quantum chip, and unlike traditional silicon-based chips, its computing power has nothing to do with the nano process, depending on the control of qubits, Wukong chip should be higher than 64 qubits, that is, 2 to the 64 power of storage capacity. The accuracy of the lossless probe, an important related device of Wukong chip, is about 1um.