Cited by 28Quantum Computing Algorithms and ArchitectureComplexity and Algorithms in GraphsQuantum many-body systems

Max-independent set and the quantum alternating operator ansatz

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Saleem, Zain Hamid·2020·International Journal of Quantum Information

Abstract

The maximum-independent set (MIS) problem of graph theory using the quantum alternating operator ansatz is studied. We perform simulations on the Rigetti Forest simulator for the square ring, [Formula: see text], and [Formula: see text] graphs and analyze the dependence of the algorithm on the depth of the circuit and initial states. The probability distribution of observation of the feasible states representing maximum-independent sets is observed to be asymmetric for the MIS problem, which is unlike the Max-Cut problem where the probability distribution of feasible states is symmetric. For asymmetric graphs, it is shown that the algorithm clearly favors the independent set with the larger number of elements even for finite circuit depth. We also compare the approximation ratios for the algorithm when we choose different initial states for the square ring graph and show that it is dependent on the choice of the initial state.

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Authors
Saleem, Z. H.
Affiliations
Argonne National Laboratory (US)
Corresponding author
Saleem, Zain Hamid
Venue
International Journal of Quantum Information
Published
2020-06
Volume
18
Issue
04
Pages
2050011
ISSN
  • 0219-7499 (ISSN-L)
  • 1793-6918
OpenAlex
W3015675400
Cited by
28
References
6
Citations by year
2025: 6 · 2024: 6 · 2023: 6 · 2022: 4 · 2021: 5 · 2020: 1
FWCI
1.57
Type
journal article
Language
en
Open access
Locations
  • International Journal of Quantum Information (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • arXiv (Cornell University)
Funders
U.S. Department of Energy, Office of Science (DE-AC02-06CH11357)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Computing Algorithms and Architecture
  • Physical Sciences › Computer Science › Computational Theory and Mathematics › Complexity and Algorithms in Graphs
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum many-body systems
Keywords
maximum independent set, Quantum Alternating Operator Ansatz, quantum annealing, circuit depth, sensitivity to initial conditions, approximation ratio

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