{"paper":{"title":"Long-range waveguide-quantum electrodynamics with left-handed transmission lines","license":"http://creativecommons.org/licenses/by/4.0/","headline":"A left-handed transmission line coupled to a quantum emitter generates native long-range interactions through logarithmically decaying hopping amplitudes.","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"A. Kamal, C. A. Gonz\\'alez-Guti\\'errez, J. Liu, P. Goswami","submitted_at":"2026-03-04T20:22:06Z","abstract_excerpt":"While engineering long-range light-matter interactions is the principal aim in waveguide-QED, ironically most of the building blocks rest on local short-range couplings, such as nearest-neighbor-coupled cavity arrays employed in canonical models. Here, we propose a waveguide-QED system with native long-range interactions, comprising a single emitter coupled to a left-handed transmission line (LHTL). Interestingly, the LHTL emulates a synthetic photonic lattice with a slow logarithmic decay of hopping amplitudes over a distance set entirely by the ratio of UV and IR cutoffs of line dispersion. "},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"the LHTL emulates a synthetic photonic lattice with a slow logarithmic decay of hopping amplitudes over a distance set entirely by the ratio of UV and IR cutoffs of line dispersion. Its intrinsic long-range nature manifests both in the properties of atom-photon bound and scattering states, which exhibit algebraic localization and accelerated photon propagation respectively.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That a physical left-handed transmission line can be fabricated and operated such that its dispersion relation produces the claimed logarithmic hopping decay without significant deviations from the ideal model or higher-order effects.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A left-handed transmission line coupled to a quantum emitter produces long-range interactions with logarithmic hopping decay, algebraic localization of bound states, and accelerated photon propagation.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A left-handed transmission line coupled to a quantum emitter generates native long-range interactions through logarithmically decaying hopping amplitudes.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"e256158310b98a0f6bea5f0412d8a1b4f79c7da3f6cb7ee88c7bbceca1061b68"},"source":{"id":"2603.04581","kind":"arxiv","version":2},"verdict":{"id":"f953e105-a46f-47cb-a772-13887797cd61","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-15T16:17:16.093896Z","strongest_claim":"the LHTL emulates a synthetic photonic lattice with a slow logarithmic decay of hopping amplitudes over a distance set entirely by the ratio of UV and IR cutoffs of line dispersion. Its intrinsic long-range nature manifests both in the properties of atom-photon bound and scattering states, which exhibit algebraic localization and accelerated photon propagation respectively.","one_line_summary":"A left-handed transmission line coupled to a quantum emitter produces long-range interactions with logarithmic hopping decay, algebraic localization of bound states, and accelerated photon propagation.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That a physical left-handed transmission line can be fabricated and operated such that its dispersion relation produces the claimed logarithmic hopping decay without significant deviations from the ideal model or higher-order effects.","pith_extraction_headline":"A left-handed transmission line coupled to a quantum emitter generates native long-range interactions through logarithmically decaying hopping amplitudes."},"references":{"count":35,"sample":[{"doi":"","year":null,"title":"calculational","work_id":"be0283bc-81a8-4027-b37a-0453d4fcc455","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"Non-Markovian Qubit Dynamics Plugging Eq. 17 in time-dependent Schr¨ odinger equa- tion gives a set of coupled differential equations which, after eliminating the photonic mode amplitudes, yields, ˙˜C","work_id":"a8255ca3-58d3-4806-b17d-30904aedad1b","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"Photon Dynamics: accelerated light cones Long-range couplings and interactions are known to profoundly modify the propagation of excitations and correlations in many-body systems [21–24]. Specifically","work_id":"6d9e30fd-fe5e-4c12-81b0-7aa54c7e4c52","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2023,"title":"A. S. Sheremet, M. I. Petrov, I. V. Iorsh, A. V. Poshakin- skiy, A. N. Poddubny, Waveguide quantum electrody- namics: Collective radiance and photon-photon correla- tions.Rev. Mod. Phys.95, 015002 (20","work_id":"04720718-12a1-432d-9940-38815e8a3a9a","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2019,"title":"G. Andersson, B. Suri, L. Guo, T. Aref, P. Delsing, Non-exponential decay of a giant artificial atom.Nature Physics15(11), 1123–1127 (2019)","work_id":"f4669208-9f58-43ea-bc89-4787a551a27d","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":35,"snapshot_sha256":"08ab4f2c1ce235fbae2c43aa23df8dd9edacd0af4273f12a7d4619c5fb937716","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"}