{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"ff95a8f183ebc25e4b7e35cf9a67bc0bcf9c76f41c183d1d5f26a3b8bd6c2f50","created":"2026-10-03T07:18:04Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["05e4da055d00ca967f564973bc20b85087c81e5ba850b0661431ff996a221066","5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"0366a9c3daadb2f6a2cdf982ce43a05792fc3b3e9060308413a4820ad5ef4876","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"yes-no","assisted_by":[],"external_id":"grav.uv-completion.asymptotic-safety-fixed-point","kind":"well-posed","literature_status":"contested","n":"1","parents":[{"note":"","parent_revision":"05e4da055d00ca967f564973bc20b85087c81e5ba850b0661431ff996a221066","relation":"special_case"}],"plain":"Asymptotic safety proposes that gravity stops getting stronger at short distances because the theory approaches a scale-invariant point, called a fixed point. The evidence comes from approximate calculations whose reliability is debated.","posed_since":"1979","precise":"For the renormalization group flow of 4D gravity coupled to Standard Model matter, determine whether a non-Gaussian fixed point exists with finitely many UV-relevant directions, beyond truncations of the effective action, in Lorentzian signature and without ghosts in the full graviton propagator. An answer is a controlled demonstration (for example convergence across systematically enlarged truncations, or a lattice continuum limit) or a no-go result.","problem_ref":null,"references":"","settled_by":"Convergence of fixed-point properties under systematic enlargement of truncations, confirmed by an independent non-perturbative method.","status_note":"Truncated functional renormalization group studies since Reuter (1998) find a fixed point; convergence, Lorentzian formulation and unitarity remain disputed as of 2026.","title":"Does 4D quantum gravity with matter have an ultraviolet fixed point?","topic_ref":"c4c16a23d26fb15802115d6c08196860939989b3b47923782e43e698e37ba8b7"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"065c8c4af953fe85e5c156c66b4e0b7a9e7e7f362420ec7339edf5a416f3ebae","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"648b6343ae628456290930d3e826c20a431f4f90afa9217bb996e8daac647deb","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"dA7MD15u67IzEYUnY-B1PUZygQ-W8S34gE6HmDWXE7h4QifFTi5xrvhC5kuuznPr7rsYNvtIWnYD6GsMFLlTAg"},"schema":"pubphys.envelope/1"},"record_hash":"065c8c4af953fe85e5c156c66b4e0b7a9e7e7f362420ec7339edf5a416f3ebae","leaf_index":1516}