{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"7f767b194ef18be5a7baabf8a8faa36e174af80310ce665ac1b390fcac33e566","created":"2026-10-03T07:17:54Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"95e0a1e27fe05c0f4cc39b31424490f09ca3e2c8a24d714d6d6c184252b44f86","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"amo.ultracold-molecules.sticky-loss","kind":"phenomenon","literature_status":"partially-resolved","n":"1","parents":[],"plain":"Even molecules that cannot react vanish from traps when they collide. They seem to stick together for a while and are then lost, but the full story is not settled.","posed_since":"","precise":"Bialkali molecules (RbCs, NaK, NaRb, NaCs) in their absolute ground state with no exothermic reaction channel show two-body loss at near-universal rates. Identify all loss channels of the four-atom complex (trap-light photoexcitation, collisions with a third molecule, other) and account for measured rates quantitatively for each species. Answer: a channel-by-channel budget matching data.","problem_ref":null,"references":"","settled_by":"Species-by-species measurements of complex lifetimes and loss in light-free traps explained by a single model.","status_note":"Photoexcitation by trap light explains loss in several species, but some measured complex lifetimes differ from statistical estimates by large factors (review arXiv:2211.10223).","title":"Why do chemically stable ultracold molecules disappear in collisions?","topic_ref":"1fb1ed324ce6795edc9bd20f140c48402fb8e9474fb20636a6be3feb50ae65e2"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"7f8c80c204c6cf27eb6664ebec25e5184988c4bca7c9aed301b692deb720f23f","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"c2b34ccd079e00983d12543ef416f9534ea3b616551df6ec10f45821abd1bbed","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"yZ4wVssIcNzCdnxHR-HYIUUym_Rwq-6U7J_zp1CLf16EgM4Y4WXYMKxNQNHsooYS-XNhdbTmGkc7tp3dbYGfAw"},"schema":"pubphys.envelope/1"},"record_hash":"7f8c80c204c6cf27eb6664ebec25e5184988c4bca7c9aed301b692deb720f23f","leaf_index":467}