The Case Against Google’s Claims of “Quantum Supremacy”: A Very Short Introduction.
The 2019 paper “Quantum supremacy using a programmable superconducting processor” asserted that Google’s Sycamore quantum computer, with 53 qubits and a depth of 20, performed a specific computation in about 200 seconds. According to Google’s estimate, a state-of-the-art classical supercomputer would require approximately 10,000 years to complete the same computation.
The Google experiment had two major components:
The “Fidelity Claims”: Assertions regarding the fidelity of the samples produce...
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