A Simplification Method for Inequality Constraints in Integer Binary Encoding HOBO Formulations

• URL: http://arxiv.org/abs/2501.09670v3
• Date: Mon, 20 Jan 2025 02:17:17 GMT
• Title: A Simplification Method for Inequality Constraints in Integer Binary Encoding HOBO Formulations
• Authors: Yuichiro Minato,
• Abstract summary: The proposed method addresses challenges associated with Quadratic Unconstrained Binary Optimization (QUBO) formulations. By efficiently integrating constraints, the method enhances the computational efficiency and accuracy of both quantum and classical solvers.
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• Abstract: This study proposes a novel method for simplifying inequality constraints in Higher-Order Binary Optimization (HOBO) formulations. The proposed method addresses challenges associated with Quadratic Unconstrained Binary Optimization (QUBO) formulations, specifically the increased computational complexity and reduced solution accuracy caused by the introduction of slack variables and the resulting growth in auxiliary qubits. By efficiently integrating constraints, the method enhances the computational efficiency and accuracy of both quantum and classical solvers. The effectiveness of the proposed approach is demonstrated through numerical experiments applied to combinatorial optimization problems. The results indicate that this method expands the applicability of quantum algorithms to high-dimensional problems and improves the practicality of classical optimization solvers for optimization problems involving inequality constraints.

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