Bias-Field Digitized Counterdiabatic Quantum Algorithm for Higher-Order Binary Optimization

• URL: http://arxiv.org/abs/2409.04477v1
• Date: Thu, 5 Sep 2024 17:38:59 GMT
• Title: Bias-Field Digitized Counterdiabatic Quantum Algorithm for Higher-Order Binary Optimization
• Authors: Sebastián V. Romero, Anne-Maria Visuri, Alejandro Gomez Cadavid, Enrique Solano, Narendra N. Hegade,
• Abstract summary: We present an enhanced bias-field digitized counterdiabatic quantum optimization (BF-DCQO) algorithm to address higher-order unconstrained binary optimization (HUBO) problems. Our protocol is experimentally validated using 156 qubits on an IBM quantum processor with a heavy-hex architecture.
• Score: 39.58317527488534
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We present an enhanced bias-field digitized counterdiabatic quantum optimization (BF-DCQO) algorithm to address higher-order unconstrained binary optimization (HUBO) problems. Combinatorial optimization plays a crucial role in many industrial applications, yet classical computing often struggles with complex instances. By encoding these problems as Ising spin glasses and leveraging the advancements in quantum computing technologies, quantum optimization methods emerge as a promising alternative. We apply BF-DCQO with an enhanced bias term to a HUBO problem featuring three-local terms in the Ising spin-glass model. Our protocol is experimentally validated using 156 qubits on an IBM quantum processor with a heavy-hex architecture. In the studied instances, the results outperform standard methods, including the quantum approximate optimization algorithm (QAOA), quantum annealing, simulated annealing, and Tabu search. Furthermore, we perform an MPS simulation and provide numerical evidence of the feasibility of a similar HUBO problem on a 433-qubit Osprey-like quantum processor. Both studied cases, the experiment on 156 qubits and the simulation on 433 qubits, can be considered as the start of the commercial quantum advantage era, Kipu dixit, and even more when extended soon to denser industry-level HUBO problems.

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