{"paper":{"title":"Hyperuniformity in active fluids reshapes nucleation and capillary-wave dynamics","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Nucleation in hyperuniform active fluids follows a nonequilibrium quasi-potential rather than reversible work of formation.","cross_cats":["cond-mat.soft"],"primary_cat":"cond-mat.stat-mech","authors_text":"Rapha\\\"el Maire","submitted_at":"2026-02-23T19:49:12Z","abstract_excerpt":"While nucleation in typical active and driven fluids often appears equilibrium-like, striking departures emerge when large-scale fluctuations are strongly suppressed. Here, we investigate nucleation in nonequilibrium hyperuniform fluids by projecting the full density-field dynamics onto relevant collective variables. We demonstrate that nucleation is governed by a nonequilibrium quasipotential rather than the reversible work of formation. Surprisingly, because of the reduced hyperuniform fluctuations, the nucleation probability no longer separates into the usual surface and volume contribution"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"nucleation is governed by a nonequilibrium quasi-potential rather than the reversible work of formation. Surprisingly, because of the reduced hyperuniform fluctuations, the nucleation probability no longer separates into the usual surface and volume contributions. Furthermore, accounting for capillary waves reveals a clear breakdown of detailed balance driven by nonreciprocal dynamics.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The projection of the full density-field dynamics onto a small set of collective variables is sufficient to capture the essential nucleation and capillary-wave statistics without missing relevant modes or introducing uncontrolled approximations.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"In hyperuniform active fluids, nucleation is governed by a nonequilibrium quasi-potential with nucleation probability not separating into surface and volume terms, while capillary waves exhibit breakdown of detailed balance from nonreciprocal dynamics.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Nucleation in hyperuniform active fluids follows a nonequilibrium quasi-potential rather than reversible work of formation.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"3c30eb03aad40283e85b65ed15ef21499ed2bfb3301fdeea620c08ec95cb8214"},"source":{"id":"2602.20308","kind":"arxiv","version":3},"verdict":{"id":"55de6f1c-3639-4730-b104-566f2d7f6033","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-15T19:44:58.998425Z","strongest_claim":"nucleation is governed by a nonequilibrium quasi-potential rather than the reversible work of formation. Surprisingly, because of the reduced hyperuniform fluctuations, the nucleation probability no longer separates into the usual surface and volume contributions. Furthermore, accounting for capillary waves reveals a clear breakdown of detailed balance driven by nonreciprocal dynamics.","one_line_summary":"In hyperuniform active fluids, nucleation is governed by a nonequilibrium quasi-potential with nucleation probability not separating into surface and volume terms, while capillary waves exhibit breakdown of detailed balance from nonreciprocal dynamics.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The projection of the full density-field dynamics onto a small set of collective variables is sufficient to capture the essential nucleation and capillary-wave statistics without missing relevant modes or introducing uncontrolled approximations.","pith_extraction_headline":"Nucleation in hyperuniform active fluids follows a nonequilibrium quasi-potential rather than reversible work of formation."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2602.20308/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"}