{"paper":{"title":"A Pseudogap in the Single-Particle Density of States of a Tomonaga-Luttinger Liquid","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Alexei M. Tsvelik, Emiliano Papa","submitted_at":"2000-04-02T11:49:57Z","abstract_excerpt":"We study a single-particle density of states (DOS) in a model of Tomonaga-Luttinger liquid with small (large) values of the Luttinger parameter $K_\\rc < 0.17$, ($K_\\rc > 5.82$), in the charge sector. We explain that such values of $K_\\rc$ may be achieved by electron-phonon interactions without generating the spin gap. We suggest that electron-phonon interactions can be partially incorporated into the Tomonaga-Luttinger liquid scheme by introducing frequency dependent $K_\\rc(\\omega)$. We demonstrate that when the low-frequency asymptotic value $K_\\rc(0) < 0.17$ or $K_\\rc(0) > 5.82$, the single-"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0004007","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"}