Feedback-Based Quantum Algorithm for Constrained Optimization Problems

Fuente: arXiv
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Autori principali: Rahman, Salahuddin Abdul, Karabacak, Özkan, Wisniewski, Rafal
Natura: Preprint
Pubblicazione: 2024
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author Rahman, Salahuddin Abdul
Karabacak, Özkan
Wisniewski, Rafal
author_facet Rahman, Salahuddin Abdul
Karabacak, Özkan
Wisniewski, Rafal
contents The feedback-based algorithm for quantum optimization (FALQON) has recently been proposed to solve quadratic unconstrained binary optimization problems. This paper efficiently generalizes FALQON to tackle quadratic constrained binary optimization (QCBO) problems. For this purpose, we introduce a new operator that encodes the problem's solution as its ground state. Using Lyapunov control theory, we design a quantum control system such that the state converges to the ground state of this operator. When applied to the QCBO problem, we show that our proposed algorithm saves computational resources by reducing the depth of the quantum circuit and can perform better than FALQON. The effectiveness of our proposed algorithm is further illustrated through numerical simulations.
format Preprint
id arxiv_https___arxiv_org_abs_2406_08169
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Feedback-Based Quantum Algorithm for Constrained Optimization Problems
Rahman, Salahuddin Abdul
Karabacak, Özkan
Wisniewski, Rafal
Quantum Physics
The feedback-based algorithm for quantum optimization (FALQON) has recently been proposed to solve quadratic unconstrained binary optimization problems. This paper efficiently generalizes FALQON to tackle quadratic constrained binary optimization (QCBO) problems. For this purpose, we introduce a new operator that encodes the problem's solution as its ground state. Using Lyapunov control theory, we design a quantum control system such that the state converges to the ground state of this operator. When applied to the QCBO problem, we show that our proposed algorithm saves computational resources by reducing the depth of the quantum circuit and can perform better than FALQON. The effectiveness of our proposed algorithm is further illustrated through numerical simulations.
title Feedback-Based Quantum Algorithm for Constrained Optimization Problems
topic Quantum Physics
url https://arxiv.org/abs/2406.08169