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Performance benefits of increased qubit connectivity in quantum annealing 3-dimensional spin glasses

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arxiv 2009.12479 v1 pith:C5CGHFZS submitted 2020-09-26 quant-ph

classification quant-ph
keywords quantumspinannealingbenefitconnectivityfabricationglassesimproved
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An important challenge in superconducting quantum computing is the need to physically couple many devices using quasi-two-dimensional fabrication processes. Recent advances in the design and fabrication of quantum annealing processors have enabled an increase in pairwise connectivity among thousands of qubits. One benefit of this is the ability to minor-embed optimization problems using fewer physical qubits for each logical spin. Here we demonstrate the benefit of this progress in the problem of minimizing the energy of three-dimensional spin glasses. Comparing the previous generation D-Wave 2000Q system to the new Advantage system, we observe improved scaling of solution time and improved consistency over multiple graph embeddings.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Data-driven multi-objective optimization for alloy recycling using factorization machines and quantum annealing

    cond-mat.mtrl-sci 2026-07 conditional novelty 6.0 of 10

    FM+QA with data-driven Tchebycheff scalarization finds non-convex Pareto alloy mixtures on D-Wave hardware and matches classical FM+SA up to ~25 binary qubits, while one-hot encoding degrades earlier.

  2. Compensating connectivity restrictions in quantum annealers via splitting and linearization techniques

    quant-ph 2025-07 conditional novelty 6.0 of 10

    A splitting-plus-linearization algorithm with random hardware-graph permutations matches large-neighborhood local search on QUBOs while avoiding minor embeddings, but its monotonicity guarantee only holds for damping ...

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