A weight-sorted insertion algorithm and two Clifford circuit constructions reduce the number of measurements and two-qubit gates needed to estimate Pauli expectation values in VQE.
The theory of variational hybrid quantum-classical algorithms
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Efficient quantum measurement of Pauli operators in the presence of finite sampling error
A weight-sorted insertion algorithm and two Clifford circuit constructions reduce the number of measurements and two-qubit gates needed to estimate Pauli expectation values in VQE.