Multi-objective optimization by quantum annealing

• URL: http://arxiv.org/abs/2511.01762v1
• Date: Mon, 03 Nov 2025 17:21:36 GMT
• Title: Multi-objective optimization by quantum annealing
• Authors: Andrew D. King,
• Abstract summary: An important task in multi-objective optimization is generating the Pareto front.<n>This problem was recently approached using the quantum approximate optimization algorithm (QAOA) on an IBM gate-model processor.<n>Here we compare these QAOA results with quantum annealing on the same two input problems, using the same methodology.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: An important task in multi-objective optimization is generating the Pareto front -- the set of all Pareto-optimal compromises among multiple objective functions applied to the same set of variables. Since this task can be computationally intensive even for small problems, it is a natural target for quantum optimization. Indeed, this problem was recently approached using the quantum approximate optimization algorithm (QAOA) on an IBM gate-model processor. Here we compare these QAOA results with quantum annealing on the same two input problems, using the same methodology. We find that quantum annealing vastly outperforms not just QAOA run on the IBM processor, but all classical and quantum methods analyzed in the previous study. On the harder problem, quantum annealing improves upon the best known Pareto front. This small study reinforces the promise of quantum annealing in multi-objective optimization.

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