624 citations · 3.8k across the 58 of their papers we have counts for
7 papers · 1 filter
Noise tailoring for scalable quantum computation via randomized compiling
Joel J. Wallman, Joseph Emerson
Quantum computers are poised to radically outperform their classical counterparts by manipulating coherent quantum systems. A realistic quantum computer will experience errors due…
Bounding experimental quantum error rates relative to fault-tolerant thresholds
Joel J. Wallman
Rigorously establishing that the error in an experimental quantum operation is beneath the threshold for fault-tolerant quantum computation currently requires considering the worst…
Robust Characterization of Loss Rates
Joel J. Wallman, Marie Barnhill, Joseph Emerson
Many physical implementations of qubits---including ion traps, optical lattices and linear optics---suffer from loss. A nonzero probability of irretrievably losing a qubit can be a…
Characterizing Universal Gate Sets via Dihedral Benchmarking
Arnaud Carignan-Dugas, Joel J. Wallman, Joseph Emerson
We describe a practical experimental protocol for robustly characterizing the error rates of non-Clifford gates associated with dihedral groups, including gates in SU(2) associated…
Estimating the Coherence of Noise
Joel J. Wallman, Christopher Granade, Robin Harper +1
Noise mechanisms in quantum systems can be broadly characterized as either coherent (i.e., unitary) or incoherent. For a given fixed average error rate, coherent noise mechanisms w…
Estimating outcome probabilities of quantum circuits using quasiprobabilities
Hakop Pashayan, Joel J. Wallman, Stephen D. Bartlett
We present a method for estimating the probabilities of outcomes of a quantum circuit using Monte Carlo sampling techniques applied to a quasiprobability representation. Our estima…
Bounding quantum gate error rate based on reported average fidelity
Yuval R Sanders, Joel J Wallman, Barry C Sanders
Remarkable experimental advances in quantum computing are exemplified by recent announcements of impressive average gate fidelities exceeding 99.9% for single-qubit gates and 99% f…