Combinatorial optimization via highly efficient quantum walks

We present a highly efficient quantum circuit for performing continuous time quantum walks (CTQWs) over an exponentially large set of combinatorial objects, provided that the objects can be indexed efficiently. CTQWs form the core mixing operation of a generalized version of the quantum approximate...

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Main Authors: S. Marsh, J. B. Wang
Formato: Artigo
Idioma:English
Publicado em: American Physical Society 2020-06-01
Colecção:Physical Review Research
Acesso em linha:http://doi.org/10.1103/PhysRevResearch.2.023302
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author S. Marsh
J. B. Wang
author_facet S. Marsh
J. B. Wang
author_sort S. Marsh
collection DOAJ
description We present a highly efficient quantum circuit for performing continuous time quantum walks (CTQWs) over an exponentially large set of combinatorial objects, provided that the objects can be indexed efficiently. CTQWs form the core mixing operation of a generalized version of the quantum approximate optimization algorithm, which works by “steering” the quantum amplitude into high-quality solutions. The efficient quantum circuit holds the promise of finding high-quality solutions to certain classes of NP-hard combinatorial problems such as the Travelling Salesman Problem, maximum set splitting, graph partitioning, and lattice path optimization.
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spelling doaj.art-703a80d8611148a4a6d884e080a3348c2024-04-12T16:55:10ZengAmerican Physical SocietyPhysical Review Research2643-15642020-06-012202330210.1103/PhysRevResearch.2.023302Combinatorial optimization via highly efficient quantum walksS. MarshJ. B. WangWe present a highly efficient quantum circuit for performing continuous time quantum walks (CTQWs) over an exponentially large set of combinatorial objects, provided that the objects can be indexed efficiently. CTQWs form the core mixing operation of a generalized version of the quantum approximate optimization algorithm, which works by “steering” the quantum amplitude into high-quality solutions. The efficient quantum circuit holds the promise of finding high-quality solutions to certain classes of NP-hard combinatorial problems such as the Travelling Salesman Problem, maximum set splitting, graph partitioning, and lattice path optimization.http://doi.org/10.1103/PhysRevResearch.2.023302
spellingShingle S. Marsh
J. B. Wang
Combinatorial optimization via highly efficient quantum walks
Physical Review Research
title Combinatorial optimization via highly efficient quantum walks
title_full Combinatorial optimization via highly efficient quantum walks
title_fullStr Combinatorial optimization via highly efficient quantum walks
title_full_unstemmed Combinatorial optimization via highly efficient quantum walks
title_short Combinatorial optimization via highly efficient quantum walks
title_sort combinatorial optimization via highly efficient quantum walks
url http://doi.org/10.1103/PhysRevResearch.2.023302
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