Performance of a Quantum Annealer for Ising Ground State Computations on Chimera Graphs

Jünger, Michael and Lobe, Elisabeth and Mutzel, Petra and Reinelt, Gerhard and Rendl, Franz and Rinaldi, Giovanni and Stollenwerk, Tobias (2019) Performance of a Quantum Annealer for Ising Ground State Computations on Chimera Graphs.
Technical Report , 21 p.

Abstract

Quantum annealing is getting increasing attention in combinatorial optimization. The quantum processing unit by D-Wave is constructed to approximately solve Ising models on so-called Chimera graphs. Ising models are equivalent to quadratic unconstrained binary optimization (QUBO) problems and maximum cut problems on the associated graphs. We have tailored branch-and-cut as well as semidefinite programming algorithms for solving Ising models for Chimera graphs to provable optimality and use the strength of these approaches for comparing our solution values to those obtained on the current quantum annealing machine D-Wave 2000Q. This allows for the assessment of the quality of solutions produced by the D-Wave hardware. It has been a matter of discussion in the literature how well the D-Wave hardware performs at its native task, and our experiments shed some more light on this issue.


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Deposit Information:
ZAIK Number: UNSPECIFIED
Depositing User: Prof. Dr. Michael Jünger
Date Deposited: 25 Apr 2019 14:11
Last Modified: 25 Apr 2019 14:11
URI: http://e-archive.informatik.uni-koeln.de/id/eprint/940