{"paper":{"title":"State Engineering via Nonlinear Interferometry with Linear Spectral Phases","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"A nonlinear interferometer using linear spectral phases generates high-dimensional spectral qudits and entangled states.","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Cody Charles Payne, Elaganuru Bashaiah, Markus Allgaier","submitted_at":"2026-01-17T21:28:14Z","abstract_excerpt":"Many protocols within quantum cryptography, communications, and computing require the ability to generate entangled states as well as spectral qudits. Nonlinear interferometry is a viable way to engineer these complex quantum states of light. However, it is difficult to achieve a high level of control over spectral correlations. Here, we present a protocol utilizing a nonlinear interferometer with linear spectral phases that can generate both high-dimensional spectral qudits and high-dimensional entangled states. We model the effect of loss and loss of overlap on interference visibility and th"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"we present a protocol utilizing a nonlinear interferometer with linear spectral phases that can generate both high-dimensional spectral qudits and high-dimensional entangled states.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That linear spectral phases can be implemented with sufficient precision and stability to achieve the claimed control over spectral correlations, and that the loss/overlap model accurately captures real experimental conditions.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A protocol for generating high-dimensional spectral qudits and entangled states via nonlinear interferometry with linear spectral phases, including loss modeling.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A nonlinear interferometer using linear spectral phases generates high-dimensional spectral qudits and entangled states.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"3017f8a909f8ee8fb743bc3490788dac3cc712f247ff8b8057ff430057a5d482"},"source":{"id":"2601.12173","kind":"arxiv","version":2},"verdict":{"id":"7e632f27-c850-400d-a7df-17713d4b47b4","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-16T12:46:33.546910Z","strongest_claim":"we present a protocol utilizing a nonlinear interferometer with linear spectral phases that can generate both high-dimensional spectral qudits and high-dimensional entangled states.","one_line_summary":"A protocol for generating high-dimensional spectral qudits and entangled states via nonlinear interferometry with linear spectral phases, including loss modeling.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That linear spectral phases can be implemented with sufficient precision and stability to achieve the claimed control over spectral correlations, and that the loss/overlap model accurately captures real experimental conditions.","pith_extraction_headline":"A nonlinear interferometer using linear spectral phases generates high-dimensional spectral qudits and entangled states."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2601.12173/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":34,"sample":[{"doi":"10.1063/5.0003320/19771655/041101","year":2020,"title":"E. Meyer-Scott, C. Silberhorn, and A. Migdall, Single-photon sources: Approaching the ideal through multiplexing, Review of Scientific Instruments91, 041101 (2020), https://pubs.aip.org/aip/rsi/articl","work_id":"0426c57f-aa8a-445a-a2e7-7cc529ce2755","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2044,"title":"C. K. Hong, Z. Y. Ou, and L. Mandel, Measurement of subpicosecond time intervals between two photons by interference, Phys. Rev. Lett.59, 2044 (1987)","work_id":"4e0b556e-3a30-415c-94c6-a0147b3817f8","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2016,"title":"S. Clemmen, A. Farsi, S. Ramelow, and A. L. Gaeta, Ramsey interference with single photons, Phys. Rev. Lett.117, 223601 (2016)","work_id":"02b0a044-a0c4-4a3b-a163-99fd88113aa5","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2016,"title":"J. M. Lukens and P. Lougovski, Optical quantum computing with spectral qubits, inFrontiers in Optics 2016(Optica Publishing Group, 2016) p. FTh5F.5","work_id":"69ae152c-359e-4f7c-ac68-8fbc2ec62df4","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2017,"title":"J. M. Lukens and P. Lougovski, Frequency-encoded photonic qubits for scalable quantum information processing, Optica 4, 8 (2017). 14","work_id":"4b2a7ad4-fc3e-4240-b0dc-dc8f77358241","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":34,"snapshot_sha256":"dfe417c52ff554093f3b7000425f3b4df657119b5cd4451512a1a410c233555c","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"8d2a909ebe059e878a0139c11b0cd0a8ef68e358dfec9211755b35fe55eb8396"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}