ArticleNature communications2024
Mechanically induced correlated errors on superconducting qubits with relaxation times exceeding 0.4 ms.
Article in Nature communications, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- Universal bound on microwave dissipation in superconducting circuits.Science advances · 2026Article
- Krypton-sputtered tantalum films for scalable high-performance quantum devices.Nature materials · 2026Article
- Article
- Spectral signature of high-order photon processes enhanced by Cooper-pair pairing.Nature communications · 2025Article
- Synchronous detection of cosmic rays and correlated errors in superconducting qubit arrays.Nature communications · 2025Article
- Methods to achieve near-millisecond energy relaxation and dephasing times for a superconducting transmon qubit.Nature communications · 2025Article
- Integration of Through-Sapphire Substrate Machining with Superconducting Quantum Processors.Advanced materials (Deerfield Beach, Fla.) · 2025Article
- Entangling Schrödinger's cat states by bridging discrete- and continuous-variable encoding.Nature communications · 2025Article
- Article
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Authors and funding
7 authors.
Funding
Abstract
Superconducting qubits are among the most advanced candidates for achieving fault-tolerant quantum computing. Despite recent significant advancements in the qubit lifetimes, the origin of the loss mechanism for state-of-the-art qubits is still subject to investigation. Furthermore, the successful implementation of quantum error correction requires negligible correlated errors between qubits. Here, we realize long-lived superconducting transmon qubits that exhibit fluctuating lifetimes, averaging 0.2 ms and exceeding 0.4 ms - corresponding to quality factors above 5 million and 10 million, respectively. We then investigate their dominant error mechanism. By introducing novel time-resolved error measurements that are synchronized with the operation of the pulse tube cooler in a dilution refrigerator, we find that mechanical vibrations from the pulse tube induce nonequilibrium dynamics in highly coherent qubits, leading to their correlated bit-flip errors. Our findings not only deepen our understanding of the qubit error mechanisms but also provide valuable insights into potential error-mitigation strategies for achieving fault tolerance by decoupling superconducting qubits from their mechanical environments.
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Registered trials
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