{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"4e7e72f697de0dfc90171c0e0ad09e0718d9958204c3e8035142c8f123a8ae72","created":"2026-10-03T07:17:51Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"61cef50bcdde9c0183793c787e34424476624b742ca5dbd7271cc2f82d3c0ce4","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"cm.flat-band-geometry","field":"cm","n":"1","review_cite":"P. Torma, S. Peotta, B. A. Bernevig, Superfluidity and quantum geometry in twisted multilayer systems, Nature Reviews Physics, 2022","review_link":"https://arxiv.org/abs/2111.00807","review_verified":"true","summary":"In a perfectly flat band electrons have no kinetic energy, so ordinary theory says they cannot carry a supercurrent, yet flat-band materials superconduct. The shape of the electron wavefunctions in momentum space (their quantum geometry) is thought to give the pairs the mobility they need.","title":"Flat-band superconductivity and quantum geometry","topic_ref":null,"why":"It changes how superconducting transition temperatures are estimated and suggests designing bands for higher $T_{c}$."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"da008840aae42cdef1acabe867ba961afa7eeb44e1e073d87f5196b23679e171","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"b78d1e665e76b9a8160ca728edb760297d5320185a720e4ccb66431e4a89a5c8","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"eyRt6MkHse5ON16l5AWFZANmRhzSJoxKqRNd0aIBjeIRTSZVC9o_XhQiN9VHiekg1WXQ7iQHQxU8PouHV5PRCQ"},"schema":"pubphys.envelope/1"},"record_hash":"da008840aae42cdef1acabe867ba961afa7eeb44e1e073d87f5196b23679e171","leaf_index":134}