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arXiv · 1406.7553

Quantum Optimization of Fully-Connected Spin Glasses

Davide Venturelli·Salvatore Mandrà·Sergey Knysh·Bryan O'Gorman·Rupak Biswas·Vadim Smelyanskiy
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Abstract

The Sherrington-Kirkpatrick model with random $\pm1$ couplings is programmed on the D-Wave Two annealer featuring 509 qubits interacting on a Chimera-type graph. The performance of the optimizer compares and correlates to simulated annealing. When considering the effect of the static noise, which degrades the performance of the annealer, one can estimate an improvement on the comparative scaling of the two methods in favor of the D-Wave machine. The optimal choice of parameters of the embedding on the Chimera graph is shown to be associated to the emergence of the spin-glass critical temperature of the embedded problem.

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Davide Venturelli, Salvatore Mandrà, Sergey Knysh, Bryan O'Gorman, Rupak Biswas, Vadim Smelyanskiy. 2014-06-29. Quantum Optimization of Fully-Connected Spin Glasses. https://doi.org/10.1103/physrevx.5.031040

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