{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"d70965049aa2df44e68e994b3046bb679c15420696bc670ff2cbc03f5055e466","created":"2026-10-03T07:18:00Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"9b777f8ff30b3b9c9bbcbeee947f6e2a922e881bb4784bf76a3dd235c4346fef","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"yes-no","assisted_by":[],"external_id":"cm.hydrides.eliashberg-predictive","kind":"well-posed","literature_status":"partially-resolved","n":"1","parents":[],"plain":"Hydride superconductivity is thought to come from lattice vibrations, which theory can compute, but light hydrogen atoms vibrate strongly and quantum mechanically, which complicates predictions.","posed_since":"","precise":"Determine whether Migdal-Eliashberg theory with first-principles electron-phonon coupling, including quantum anharmonic lattice dynamics and zero-point motion and with mu* computed or fixed in advance, predicts $T_{c}$ of compressed hydrides (H3S, LaH10, CaH6, YH6) within 10 percent and their isotope coefficients. An answer is a blind prediction later confirmed or refuted by experiment.","problem_ref":null,"references":"","settled_by":"Published blind predictions of $T_c$ and isotope coefficient for a new hydride, followed by measurement.","status_note":"Calculations reproduce $T_{c}$ of H3S and LaH10 approximately, but results depend on $\\mu*$ and on the treatment of anharmonicity.","title":"Can first-principles Eliashberg theory predict hydride $T_{c}$ within ten percent","topic_ref":"d8f6a90ffa2d9797ae166bd4e51b07a319dd484720f9647530fc1647474424b6"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"0034959e38349bf463a272586e0316ab325f44f420ee4cb10006c7684e747c1d","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"c1c482eb5d670f871694d3c50f3c0aed3cc47d232cd2348601ccd8702a1a4e5a","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"3EgYxODBsJmExai0hqXOfs2IrOId--bGXIMFXobqU00daY5YYe3jdln6sHdYxDA6pkWi_3_uBpagPgyFjs-4Cg"},"schema":"pubphys.envelope/1"},"record_hash":"0034959e38349bf463a272586e0316ab325f44f420ee4cb10006c7684e747c1d","leaf_index":1030}