624 citations · 3.8k across the 58 of their papers we have counts for
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Classical vs. quantum satisfiability in linear constraint systems modulo an integer
Hammam Qassim, Joel. J. Wallman
A system of linear constraints can be unsatisfiable and yet admit a solution in the form of quantum observables whose correlated outcomes satisfy the constraints. Recently, it has…
Independent State and Measurement Characterization for Quantum Computers
Junan Lin, Joel J. Wallman, Ian Hincks +1
Correctly characterizing state preparation and measurement (SPAM) processes is a necessary step towards building reliable quantum processing units (QPUs). In this work, we discuss…
Efficient learning of quantum noise
Robin Harper, Steven T. Flammia, Joel J. Wallman
Noise is the central obstacle to building large-scale quantum computers. Quantum systems with sufficiently uncorrelated and weak noise could be used to solve computational problems…
Efficient estimation of Pauli channels
Steven T. Flammia, Joel J. Wallman
Pauli channels are ubiquitous in quantum information, both as a dominant noise source in many computing architectures and as a practical model for analyzing error correction and fa…
Characterizing large-scale quantum computers via cycle benchmarking
Alexander Erhard, Joel James Wallman, Lukas Postler +7
Quantum computers promise to solve certain problems more efficiently than their digital counterparts. A major challenge towards practically useful quantum computing is characterizi…
Clifford recompilation for faster classical simulation of quantum circuits
Hammam Qassim, Joel J. Wallman, Joseph Emerson
Simulating quantum circuits classically is an important area of research in quantum information, with applications in computational complexity and validation of quantum devices. On…
Statistical analysis of randomized benchmarking
Robin Harper, Ian Hincks, Chris Ferrie +2
Randomized benchmarking and variants thereof, which we collectively call RB+, are widely used to characterize the performance of quantum computers because they are simple, scalable…
Phenomenological measure of quantum non-Markovianity
Adam Winick, Joel J. Wallman, Joseph Emerson
Non-Markovian effects are ubiquitous in physical quantum systems and remain a significant challenge to achieving high-quality control and reliable quantum computation, but due to t…