{"paper":{"title":"Conservation laws, vertex corrections, and screening in Raman spectroscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Andrey Chubukov, P. J. Hirschfeld, Saurabh Maiti","submitted_at":"2017-03-07T01:25:59Z","abstract_excerpt":"We present a microscopic theory for the Raman response of a clean multiband superconductor accounting for the effects of vertex corrections and long-range Coulomb interaction. The measured Raman intensity, $R(\\Omega)$, is proportional to the imaginary part of the fully renormalized particle-hole correlator with Raman form-factors $\\gamma(\\vec k)$. In a BCS superconductor, a bare Raman bubble is non-zero for any $\\gamma(\\vec k)$ and diverges at $\\Omega = 2\\Delta +0$, where $\\Delta$ is the largest gap along the Fermi surface. However, for $\\gamma(\\vec k) =$ const, the full $R(\\Omega)$ is expecte"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.02170","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"}