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Quantum Computing Experimentation with Amazon Braket
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We will apply what we have learned about gate operations to an experiment inspired by the Google Supremacy experiment. The paper titled Quantum supremacy using a programmable superconducting processor was published in Nature in October 2019. The links to this paper and the counter-claim by IBM can be found in the Further reading section. This is a good example to start with, as it does not require a specific quantum circuit, and can also explain, to some extent, the process used in the widely talked about experiment.
The Google experiment used an alternating set of randomly selected single-qubit gates (
). It entangled one of a different set of interconnected qubits using a combination of iSWAP and a CrZ (π /6) gate that had been calibrated for minimum error between that specific pair of qubits. This includes five other rotation angles that I have not shown.
The following equation shows the...