{"paper":{"title":"Extraction of Electron Self-Energy and Gap Function in the Superconducting State of Bi_2Sr_2CaCu_2O_8 Superconductor via Laser-Based Angle-Resolved Photoemission","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"cond-mat.supr-con","authors_text":"Chuangtian Chen, C. M. Varma, Daixiang Mou, Feng Yang, G. D. Gu, Guiling Wang, Guodong Liu, Haiyun Liu, H.-Y. Choi, Jae Hyun Yun, Jianqiao Meng, Jin Mo Bok, J. S. Wen, Junfeng He, Jun Zhang, Lin Zhao, Li Yu, Qinjun Peng, Shanyu Liu, Shaolong He, Shenjin Zhang, Wentao Zhang, Xiaoli Dong, Xiaowen Jia, Xiaoyang Wang, X. J. Zhou, Yingying Peng, Yong Zhu, Zhimin Wang, Z. J. Xu, Zuyan Xu","submitted_at":"2011-03-18T13:54:01Z","abstract_excerpt":"Super-high resolution laser-based angle-resolved photoemission measurements have been performed on a high temperature superconductor Bi_2Sr_2CaCu_2O_8. The band back-bending characteristic of the Bogoliubov-like quasiparticle dispersion is clearly revealed at low temperature in the superconducting state. This makes it possible for the first time to experimentally extract the complex electron self-energy and the complex gap function in the superconducting state. The resultant electron self-energy and gap function exhibit features at ~54 meV and ~40 meV, in addition to the superconducting gap-in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.3629","kind":"arxiv","version":1},"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"}