{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"690721269d32a61d01a44efe1b267eba106d5864cea128b54cc1b3222587ddf6","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["55615a03bfc157c39f29e579b86af0cdfab4347440038fffed38db8a9a205062","ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b"],"salt":"99265a4393fa704411fa731ff31db340e5b14daeba1c8dab4079601a5a19b633","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"cm.strange-metals.t-linear-origin","kind":"phenomenon","literature_status":"open","n":"2","parents":[],"plain":"Ordinary metals show resistance growing as temperature squared at low temperature, but strange metals show resistance growing linearly in temperature down to the lowest temperatures reached.","posed_since":"1987","precise":"Explain $\\rho(T) = \\rho_0 + A_1 T$ persisting from T well below the Fermi temperature up to and beyond the Mott-Ioffe-Regel limit without saturation, near quantum critical points in cuprates ($p \\sim p*$), $\\mathrm{YbRh_2Si_2}$ and other materials. An answer is a controlled theory of a metal without long-lived quasiparticles in two or three dimensions that yields T-linear resistivity with the measured slope $A_1$ and its doping or field dependence.","problem_ref":"55615a03bfc157c39f29e579b86af0cdfab4347440038fffed38db8a9a205062","references":"","settled_by":"A controlled model calculation that reproduces $A_{1}$, the optical conductivity and the magnetotransport of at least one strange metal with parameters fixed by independent measurements.","status_note":"","title":"Microscopic origin of T-linear resistivity in strange metals","topic_ref":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"3530dc158949eb27269f1d64fec37346015323bfe1d1f7de80ac51f19520a20e","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"6ba0ad8e1d685cde1cd7baa830c007ba999ecb717805bc1c7355d5c84901d217","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"Aimp2EV4Dx0-AcK-t3mUsCdv8d60QPiqZnVwUEz-hoEo7_gJegNQpdlhBa34Hq7_x9cETntoxFBrLVi76CyPCw"},"schema":"pubphys.envelope/1"},"record_hash":"3530dc158949eb27269f1d64fec37346015323bfe1d1f7de80ac51f19520a20e","leaf_index":3068}