activity
19992023
most citedA variational eigenvalue solver on a quantum processor

4.6k citations · 10.7k across the 65 of their papers we have counts for

collaborators

68 papers

quant-ph2023★ 6 cited

Error mitigation, optimization, and extrapolation on a trapped ion testbed

Oliver G. Maupin, Ashlyn D. Burch, Brandon Ruzic +8

Current noisy intermediate-scale quantum (NISQ) trapped-ion devices are subject to errors which can significantly impact the accuracy of calculations if left unchecked. A form of e…

quant-ph2023★ 11 cited

Benchmarking Noisy Intermediate Scale Quantum Error Mitigation Strategies for Ground State Preparation of the HCl Molecule

Tim Weaving, Alexis Ralli, William M. Kirby +3

Due to numerous limitations including restrictive qubit topologies, short coherence times and prohibitively high noise floors, few quantum chemistry experiments performed on existi…

quant-ph2022★ 11 cited

Unitary Partitioning and the Contextual Subspace Variational Quantum Eigensolver

Alexis Ralli, Tim Weaving, Andrew Tranter +3

The contextual subspace variational quantum eigensolver (CS-VQE) is a hybrid quantum-classical algorithm that approximates the ground-state energy of a given qubit Hamiltonian. It…

quant-ph2022★ 15 cited

A stabilizer framework for Contextual Subspace VQE and the noncontextual projection ansatz

Tim Weaving, Alexis Ralli, William M. Kirby +3

Quantum chemistry is a promising application for noisy intermediate-scale quantum (NISQ) devices. However, quantum computers have thus far not succeeded in providing solutions to p…

quant-ph2022★ 10 cited

CAFQA: A classical simulation bootstrap for variational quantum algorithms

Gokul Subramanian Ravi, Pranav Gokhale, Yi Ding +7

This work tackles the problem of finding a good ansatz initialization for Variational Quantum Algorithms (VQAs), by proposing CAFQA, a Clifford Ansatz For Quantum Accuracy. The CAF…

quant-ph2021

Limitations of Local Quantum Algorithms on Random Max-k-XOR and Beyond

Chi-Ning Chou, Peter J. Love, Juspreet Singh Sandhu +1

We introduce a notion of \emph{generic local algorithm} which strictly generalizes existing frameworks of local algorithms such as \emph{factors of i.i.d.} by capturing local \emph…