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arXiv · 2406.19351

A comment on comparing optimization on D-Wave and IBM quantum processors

Catherine C. McGeoch·Kevin Chern·Pau Farré·Andrew K. King
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Abstract

Recent work [Sachdeva et al.] presented an iterative hybrid quantum variational optimization algorithm designed by Q-CTRL and executed on IBM gate-based quantum processing units (QPUs), claiming a significant performance advantage against a D-Wave quantum annealer. Here we point out major methodological problems with this comparison. Using a simple unoptimized workflow for quantum annealing, we show success probabilities multiple orders of magnitude higher than those reported by [Sachdeva et al.]. These results, which can be reproduced using open-source code and free trial access to a D-Wave quantum annealer, contradict Q-CTRL's claims of superior performance. We also provide a direct comparison between quantum annealing and a recent demonstration of digitized quantum annealing on an IBM processor, showing that analog quantum annealing on a D-Wave QPU reaches far lower energies than digitized quantum annealing on an IBM QPU.

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Catherine C. McGeoch, Kevin Chern, Pau Farré, Andrew K. King. 2024-06-27. A comment on comparing optimization on D-Wave and IBM quantum processors. https://arxiv.org/abs/2406.19351

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