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ESTIMATION DE PHASE CLASSIQUE ET QUANTIQUE RAPIDE
ESTIMATION DE PHASE CLASSIQUE ET QUANTIQUE RAPIDE
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摘要
A quantum phase estimator may include at least one phase gate, at least one controlled unitary gate, and at least one measurement device. The quantum phase estimator receives at least one ancillary qubit and a calculational state comprised of multiple qubits. The phase gate may apply random phases to the ancillary qubit, which is used as a control to the controlled unitary gate. The controlled unitary gate applies a second random phase to the calculational state. The measurement device may measure a state of the ancillary qubit from which a phase of the calculational state may be determined.
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