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Translating these barriers at controlled speeds imposes a steady bias current, enabling direct mapping of the current-chemical-potential (I-{\\Delta}{\\mu}) characteristics. For narrow junctions (w \\approx 1{\\mu}m) the circuit exhibits a pronounced dc branch that terminates at a critical current I_c = 9(1) x 10^3 s^{-1}; above this threshold the system switches to an ac, resistive regime. 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Translating these barriers at controlled speeds imposes a steady bias current, enabling direct mapping of the current-chemical-potential (I-{\\Delta}{\\mu}) characteristics. For narrow junctions (w \\approx 1{\\mu}m) the circuit exhibits a pronounced dc branch that terminates at a critical current I_c = 9(1) x 10^3 s^{-1}; above this threshold the system switches to an ac, resistive regime. Cl"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"For narrow junctions (w ≈ 1 μm) the circuit exhibits a pronounced dc branch that terminates at a critical current Ic = 9(1) × 10^3 s^{-1}; above this threshold the system switches to an ac, resistive regime with dissipation mediated by the nucleation and traversal of vortex-antivortex pairs while the bulk condensate remains globally phase-locked.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The two optical barriers function as movable weak links that impose a steady bias current while preserving the ring's topological constraint on quantized circulation.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A 2D ring BEC with two movable optical barriers shows a dc Josephson branch up to a measured critical current, after which vortex-antivortex pairs cause dissipation while the bulk remains phase-locked.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A ring-shaped Bose-Einstein condensate with two movable optical barriers supports a dc Josephson current up to a critical value before vortex pairs trigger dissipation while preserving global phase locking.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"1168e1cb43c3e59b6729093cf5b476252cd49e6601a30c28413dc6a10405ef5d"},"source":{"id":"2509.00533","kind":"arxiv","version":2},"verdict":{"id":"58815f85-e60d-4f9f-80c5-b228ec1b7fb8","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-18T20:33:11.213641Z","strongest_claim":"For narrow junctions (w ≈ 1 μm) the circuit exhibits a pronounced dc branch that terminates at a critical current Ic = 9(1) × 10^3 s^{-1}; above this threshold the system switches to an ac, resistive regime with dissipation mediated by the nucleation and traversal of vortex-antivortex pairs while the bulk condensate remains globally phase-locked.","one_line_summary":"A 2D ring BEC with two movable optical barriers shows a dc Josephson branch up to a measured critical current, after which vortex-antivortex pairs cause dissipation while the bulk remains phase-locked.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The two optical barriers function as movable weak links that impose a steady bias current while preserving the ring's topological constraint on quantized circulation.","pith_extraction_headline":"A ring-shaped Bose-Einstein condensate with two movable optical barriers supports a dc Josephson current up to a critical value before vortex pairs trigger dissipation while preserving global phase locking."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2509.00533/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":61,"sample":[{"doi":"","year":1962,"title":"B. 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