{"paper":{"title":"Collision Dynamics of False-Vacuum Oscillons","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Oscillon collisions in false-vacuum scalar theories can trigger phase transitions to the true vacuum by forming kink-antikink pairs.","cross_cats":["nlin.PS"],"primary_cat":"hep-th","authors_text":"Azadeh Mohammadi, J. G. F. Campos, N. S. Manton","submitted_at":"2026-05-12T18:15:12Z","abstract_excerpt":"We study the collision dynamics of localized oscillons in two classes of $(1+1)$-dimensional scalar field theories with metastable false vacua, a normal class with a positive quartic self-interaction term and an inverted class with a negative quartic term. We construct small-amplitude oscillon solutions around the false vacuum using the Fodor {\\emph{et al.}} expansion, and show that the force between oscillons decays exponentially at large separation, with a strength modulated by their relative phase. Numerical simulations of two-oscillon collisions exhibit reflection, crossing, and formation "},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"In the normal theory, if the oscillons have sufficient energy, the field can pass over a sphaleron barrier and evolve into a kink-antikink pair, initiating a phase transition to the true vacuum.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The small-amplitude Fodor et al. expansion produces oscillon profiles whose collision dynamics remain qualitatively accurate even when the objects carry enough energy to surmount the sphaleron barrier.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Oscillon collisions in false-vacuum scalar theories produce reflection, crossing, resonance windows, and can initiate true-vacuum phase transitions when energy suffices.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Oscillon collisions in false-vacuum scalar theories can trigger phase transitions to the true vacuum by forming kink-antikink pairs.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"27fda4227bd834beb0a658ec1a9f9aee2a3ea521d959094a58c66e02aa1b63b2"},"source":{"id":"2605.12633","kind":"arxiv","version":1},"verdict":{"id":"27999c54-00a4-4e54-9ad3-9e91595069f2","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-14T20:10:54.896495Z","strongest_claim":"In the normal theory, if the oscillons have sufficient energy, the field can pass over a sphaleron barrier and evolve into a kink-antikink pair, initiating a phase transition to the true vacuum.","one_line_summary":"Oscillon collisions in false-vacuum scalar theories produce reflection, crossing, resonance windows, and can initiate true-vacuum phase transitions when energy suffices.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The small-amplitude Fodor et al. expansion produces oscillon profiles whose collision dynamics remain qualitatively accurate even when the objects carry enough energy to surmount the sphaleron barrier.","pith_extraction_headline":"Oscillon collisions in false-vacuum scalar theories can trigger phase transitions to the true vacuum by forming kink-antikink pairs."},"references":{"count":42,"sample":[{"doi":"","year":1994,"title":"M. 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Phys., 6:009, 2010","work_id":"a107913a-db71-4a9e-bde7-90f631bc3852","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2023,"title":"K. D. Lozanov and V. Takhistov. Enhanced gravitational waves from inflaton oscillons.Phys. Rev. Lett., 130:181002, 2023","work_id":"4c0d2c14-e8a1-4ad4-8054-1a16fee0fafa","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":42,"snapshot_sha256":"5ee24977906de1556e5703a20bb20017653a811ad38beaef04b4e89032ae7291","internal_anchors":1},"formal_canon":{"evidence_count":2,"snapshot_sha256":"5afbebae81a3680998b513a4b51a407fd8f9af584276b68376ec2916475f21d8"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}