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.
Scientific Publications
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2023

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Probing Flux and Charge Noise with Macroscopic Resonant Tunneling
2022

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Multilevel Resonant Tunneling in the Presence of Flux and Charge Noise

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Coherent Quantum Annealing in a Programmable 2,000 Qubit Ising Chain

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Annealing-based Quantum Computing for Combinatorial Optimal Power Flow

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Hybrid Quantum Annealing for Larger-than-QPU Lattice-Structured Problems
2021

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Essentially Exact Numerical Modelling of Flux Qubit Chains Subject to Charge and Flux Noise

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Architectural Considerations in the Design of a Third-Generation Superconducting Quantum Annealing Processor

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Qubit Spin Ice

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Improving Nonstoquastic Quantum Annealing with Spin-Reversal Transformations

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Scaling Advantage Over Path-Integral Monte Carlo in Quantum Simulation of Geometrically Frustrated Magnets

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Quantum Annealing Simulation of Out-of-Equilibrium Magnetization in a Spin-Chain Compound
2020

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Simulating the Shastry-Sutherland Ising Model Using Quantum Annealing

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Improving Performance of Logical Qubits by Parameter Tuning and Topology Compensation

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Performance Benefits of Increased Qubit Connectivity in Quantum Annealing 3-Dimensional Spin Glasses

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