{"paper":{"title":"Microscopic theory of refractive index applied to metamaterials: Effective current response tensor corresponding to standard relation $n^2 = \\varepsilon_{\\mathrm{eff}} \\mu_{\\mathrm{eff}}$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.class-ph","authors_text":"G. A. H. Schober, R. Starke","submitted_at":"2017-08-17T13:38:39Z","abstract_excerpt":"In this article, we first derive the wavevector- and frequency-dependent, microscopic current response tensor which corresponds to the \"macroscopic\" ansatz $\\vec D = \\varepsilon_0 \\varepsilon_{\\mathrm{eff}} \\vec E$ and $\\vec B = \\mu_0 \\mu_{\\mathrm{eff}} \\vec H$ with wavevector- and frequency-independent, \"effective\" material constants $\\varepsilon_{\\mathrm{eff}}$ and $\\mu_{\\mathrm{eff}}$. We then deduce the electromagnetic and optical properties of this effective material model by employing exact, microscopic response relations. In particular, we argue that for recovering the standard relation"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.08811","kind":"arxiv","version":3},"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"}