{"paper":{"title":"Momentum Dependence of the Single-Particle Self-Energy and Fluctuation Spectrum of Slightly Underdoped Bi_2 Sr_2 CaCu_2 O_{8+\\delta} from High Resolution Laser ARPES","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Chandra M. Varma, Han-Yong Choi, Jae Hyun Yun, Jin Mo Bok, Wentao Zhang, X. J. Zhou","submitted_at":"2009-12-01T07:21:29Z","abstract_excerpt":"We deduce the normal state angle-resolved single-particle self-energy $\\Sigma(\\theta, \\omega)$ and the Eliashberg function (i.e., the product of the fluctuation spectrum and its coupling to fermions) $\\alpha^2 F(\\theta,\\omega)$ for the high temperature superconductor Bi$_2$Sr$_2$CaCu$_2$O$_{8+\\delta}$ from the ultra high resolution laser angle-resolved photoemission spectroscopy (ARPES). The self-energy $\\Sigma(\\theta, \\omega)$ at energy $\\omega$ along several cuts normal to the Fermi surface at the tilt angles $\\theta$ with respect to the nodal direction in a slightly underdoped Bi$_2$Sr$_2$C"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0912.0088","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}