{"paper":{"title":"Amplitude Higgs mode and admittance in superconductors with a moving condensate","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Anatoly F. Volkov, Andreas Moor, Konstantin B. Efetov","submitted_at":"2016-07-05T19:22:41Z","abstract_excerpt":"We consider the amplitude (Higgs) mode in a superconductor with a condensate flow (supercurrent). We demonstrate that, in this case, the amplitude mode corresponding to oscillations $\\delta |\\Delta|_{\\Omega} \\exp(i \\Omega t)$ of the superconducting gap is excited by an external ac electric field $\\mathbf{E}_{\\Omega} \\exp(i \\Omega t)$ already in the first order in $|\\mathbf{E}_{\\Omega}|$, so that ${\\delta |\\Delta|_{\\Omega} \\propto (\\mathbf{v}_{0} \\mathbf{E}_{\\Omega})}$, where $\\mathbf{v}_{0}$ is the velocity of the condensate. The frequency dependence $\\delta |\\Delta|_{\\Omega}$ has a resonance "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.01373","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"}