ArticleNature communications2016
Computational multiqubit tunnelling in programmable quantum annealers.
Article in Nature communications, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed.
- Inverse binary optimization of convolutional neural network in active learning efficiently designs nanophotonic structures.Scientific reports · 2025Article
- Dissipative Landau-Zener tunneling in the crossover regime from weak to strong environment coupling.Nature communications · 2025Article
- Ferroelectric compute-in-memory annealer for combinatorial optimization problems.Nature communications · 2024Article
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- Programming Quantum Neural Networks on NISQ Systems: An Overview of Technologies and Methodologies.Entropy (Basel, Switzerland) · 2023Article
- Oscillator-Network-Based Ising Machine.Micromachines · 2022Review
- Controlled precision QUBO-based algorithm to compute eigenvectors of symmetric matrices.PloS one · 2022Article
- Reduction of the molecular hamiltonian matrix using quantum community detection.Scientific reports · 2021Article
- Magnetic flux noise in superconducting qubits and the gap states continuum.Scientific reports · 2021Article
- Finite temperature quantum annealing solving exponentially small gap problem with non-monotonic success probability.Nature communications · 2018Article
- A coherent quantum annealer with Rydberg atoms.Nature communications · 2017Article
- Robust quantum optimizer with full connectivity.Science advances · 2017Article
- A Direct Mapping of Max k-SAT and High Order Parity Checks to a Chimera Graph.Scientific reports · 2016Article
- Zero-temperature quantum annealing bottlenecks in the spin-glass phase.Nature communications · 2016Article
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Authors and funding
10 authors.
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Abstract
Quantum tunnelling is a phenomenon in which a quantum state traverses energy barriers higher than the energy of the state itself. Quantum tunnelling has been hypothesized as an advantageous physical resource for optimization in quantum annealing. However, computational multiqubit tunnelling has not yet been observed, and a theory of co-tunnelling under high- and low-frequency noises is lacking. Here we show that 8-qubit tunnelling plays a computational role in a currently available programmable quantum annealer. We devise a probe for tunnelling, a computational primitive where classical paths are trapped in a false minimum. In support of the design of quantum annealers we develop a nonperturbative theory of open quantum dynamics under realistic noise characteristics. This theory accurately predicts the rate of many-body dissipative quantum tunnelling subject to the polaron effect. Furthermore, we experimentally demonstrate that quantum tunnelling outperforms thermal hopping along classical paths for problems with up to 200 qubits containing the computational primitive.
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