{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"1efa54ddc936379b4a7cfe08933503e5b37b5a720977bfb1a16079bee55820d0","created":"2026-10-03T07:17:52Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"4dc9a6647af2cfd3b57cadb41fc93cd029eea2a50085e8ca8f2724d4cde05b50","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"qft.positive-geometry","field":"qft","n":"1","review_cite":"E. Herrmann, J. Trnka, The SAGEX Review on Scattering Amplitudes, Chapter 7: Positive Geometry of Scattering Amplitudes, J. Phys. A 55 (44), 2022","review_link":"https://doi.org/10.1088/1751-8121/ac8709","review_verified":"true","summary":"For one idealized gauge theory with infinitely many colors, scattering amplitudes equal the volume-like form of a geometric shape called the amplituhedron, with no Feynman diagrams needed. Whether similar shapes exist for finite numbers of colors, for realistic theories, for gravity and for cosmology is open.","title":"Positive geometry beyond planar N=4 super-Yang-Mills","topic_ref":null,"why":"A geometric formulation would explain locality and unitarity as consequences of geometry and could make high-loop calculations tractable."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"cd9a4680d5f7ad1dcd63b8f904c4272d3e5ac40ad4be46888c8f43e407804d79","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"8cd7198c575c2568f99e1e0ef4c00395c986fccc435e0bd86d0f9397fdd9fdec","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"zIyd0z2LH8zgSwYn9g5BFpQ-MoWRYmTgtZjBAh-KbUpfq23jfM38B71koVrlUiC5NxILIy4V1NfTa49IBFhlCw"},"schema":"pubphys.envelope/1"},"record_hash":"cd9a4680d5f7ad1dcd63b8f904c4272d3e5ac40ad4be46888c8f43e407804d79","leaf_index":321}