268 citations · 558 across the 15 of their papers we have counts for
4 papers · 1 filter
Assessment of various Hamiltonian partitionings for the electronic structure problem on a quantum computer using the Trotter approximation
Luis A. Martínez-Martínez, Tzu-Ching Yen, Artur F. Izmaylov
Solving the electronic structure problem via unitary evolution of the electronic Hamiltonian is one of the promising applications of digital quantum computers. One of the practical…
Improving quantum measurements by introducing "ghost" Pauli products
Seonghoon Choi, Tzu-Ching Yen, Artur F. Izmaylov
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-…
Fidelity overhead for non-local measurements in variational quantum algorithms
Zachary Pierce Bansingh, Tzu-Ching Yen, Peter D. Johnson +1
Measuring quantum observables by grouping terms that can be rotated to sums of only products of Pauli operators (Ising form) is proven to be efficient in near term quantum…
Deterministic improvements of quantum measurements with grouping of compatible operators, non-local transformations, and covariance estimates
Tzu-Ching Yen, Aadithya Ganeshram, Artur F. Izmaylov
Obtaining the expectation value of an observable on a quantum computer is a crucial step in the variational quantum algorithms. For complicated observables such as molecular electr…