Improving Quantum Measurements by Introducing "Ghost" Pauli Products.
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DOI: 10.1021/acs.jctc.2c00837
Abstract: Reducing the number of measurements required to estimate the expectation value of an observable is crucial for the variational quantum eigensolver to become competitive with state-of-the-art classical algorithms. To measure complicated observables such as a… read more here.
Keywords: pauli products; ghost pauli; expectation value; quantum ... See more keywords