{"paper":{"title":"First Measurement of Correlated Charge Noise in Superconducting Qubits at an Underground Facility","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex","physics.ins-det"],"primary_cat":"quant-ph","authors_text":"A. Chou, A. Col\\'on Cesan\\'i, A. Rodriguez, B. Schmidt, C. Bathurst, C. James, D. Baxter, D. Bowring, D.J. Temples, D. Sabhari, E. Figueroa-Feliciano, G. Bratrud, G. Cancelo, G. Spahn, G. Wagner, H. Magoon, I. Hernandez, J. Yu, K. Anyang, K. Kennard, K. Stifter, L. Hsu, M. Hollister, N.A. Kurinsky, N. Raha, P. Lukens, R. Chen, R. Gualtieri, R. Khatiwada, R. Linehan, R. McDermott, R. Ren, S. Lewis, S. Ray, S. Sussman, S. Uemura, T. Dyson, V. Novati","submitted_at":"2024-05-07T20:05:25Z","abstract_excerpt":"We measure space- and time-correlated charge jumps on a four-qubit device, operating 107 meters below the Earth's surface in a low-radiation, cryogenic facility designed for the characterization of low-threshold particle detectors. The rock overburden of this facility reduces the cosmic ray muon flux by over 99% compared to laboratories at sea level. Combined with 4$\\pi$ coverage of a movable lead shield, this facility enables quantifiable control over the flux of ionizing radiation on the qubit device. Long-time-series charge tomography measurements on these weakly charge-sensitive qubits cap"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.04642","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2405.04642/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}