{"paper":{"title":"Entropy Production from Spin--Vibrational Coupling in Endohedral-Fullerene Qubits Encapsulated in Suspended Carbon Nanotubes","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"Spin-vibrational coupling in nanotube-encapsulated fullerene qubits produces crossovers between oscillator-dominated and spin-dominated entropy production.","cross_cats":["quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Cristian Staii","submitted_at":"2026-05-15T01:36:54Z","abstract_excerpt":"Hybrid carbon nanotube-fullerene architectures provide a controllable platform for studying irreversibility and information flow in structured quantum environments. We analyze entropy generation in a system where paramagnetic endohedral fullerenes, such as N@C$_{60}$ and P@C$_{60}$, are encapsulated inside a suspended carbon nanotube (CNT) resonator, with selected multi-level fullerene spin states forming an effective qubit coupled to quantized CNT flexural modes. Building on prior work on fullerene-filled CNTs, spin-phonon control in suspended nanotubes, and phase-space propagators for damped"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"magnetic-gradient-enhanced spin-phonon coupling, resonant driving, and moderate thermal occupation produce crossovers between oscillator-dominated and spin-dominated entropy-production regimes.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The system can be accurately described by an effective Jaynes-Cummings spin-vibrational interaction embedded in a Lindblad master equation that includes mechanical damping, spin relaxation, pure dephasing, and thermally activated excitation (abstract, paragraph on the coupled spin-mechanical dynamics).","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"A hybrid open-system model using Wigner functions and Lindblad dynamics shows crossovers in entropy-production regimes driven by spin-phonon coupling in fullerene-CNT hybrids.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Spin-vibrational coupling in nanotube-encapsulated fullerene qubits produces crossovers between oscillator-dominated and spin-dominated entropy production.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"ef0fcfeaab43919232082917f2c37661cd693dbaf4b5953d51ad965ab3e16676"},"source":{"id":"2605.15521","kind":"arxiv","version":1},"verdict":{"id":"78220d72-35e5-4bfc-8bb1-92a6ccb34ee7","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T15:00:57.335213Z","strongest_claim":"magnetic-gradient-enhanced spin-phonon coupling, resonant driving, and moderate thermal occupation produce crossovers between oscillator-dominated and spin-dominated entropy-production regimes.","one_line_summary":"A hybrid open-system model using Wigner functions and Lindblad dynamics shows crossovers in entropy-production regimes driven by spin-phonon coupling in fullerene-CNT hybrids.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The system can be accurately described by an effective Jaynes-Cummings spin-vibrational interaction embedded in a Lindblad master equation that includes mechanical damping, spin relaxation, pure dephasing, and thermally activated excitation (abstract, paragraph on the coupled spin-mechanical dynamics).","pith_extraction_headline":"Spin-vibrational coupling in nanotube-encapsulated fullerene qubits produces crossovers between oscillator-dominated and spin-dominated entropy production."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.15521/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"doi_title_agreement","ran_at":"2026-05-19T15:31:17.693490Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_compliance","ran_at":"2026-05-19T15:10:43.451445Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"cited_work_retraction","ran_at":"2026-05-19T14:22:03.141112Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"claim_evidence","ran_at":"2026-05-19T14:21:54.046252Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"shingle_duplication","ran_at":"2026-05-19T13:49:41.842479Z","status":"skipped","version":"0.1.0","findings_count":0},{"name":"citation_quote_validity","ran_at":"2026-05-19T13:49:41.379719Z","status":"skipped","version":"0.1.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T13:33:22.628126Z","status":"skipped","version":"1.0.0","findings_count":0}],"snapshot_sha256":"f6c8399c34e930a40cad504d554d2b3c4c198f1ae6fbccdf3fdebc8c8b8d995a"},"references":{"count":51,"sample":[{"doi":"","year":2021,"title":"G. T. Landi and M. Paternostro, Irreversible entropy pro- duction, from quantum to classical, Rev. Mod. Phys.93, 035008 (2021), arXiv:2009.07668 [quant-ph]","work_id":"eb742a34-367b-4ded-9cfa-b18d8e95ee75","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2003,"title":"Decoherence, einselection, and the quantum origins of the classical","work_id":"02cccb1d-4c16-4a38-af96-c13a6689f273","ref_index":2,"cited_arxiv_id":"quant-ph/0105127","is_internal_anchor":true},{"doi":"","year":2007,"title":"Schlosshauer,Decoherence and the Quantum-To- Classical Transition, Frontiers Collection (Springer Berlin Heidelberg, Berlin, Heidelberg, 2007)","work_id":"820dbfb4-8a33-41a8-9335-525225cc444e","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2023,"title":"N. R. Lee, Y. Guo, A. Y. Cleland, E. A. Wollack, R. G. Gruenke, T. Makihara, Z. Wang, T. Rajabzadeh, W. Jiang, F. M. Mayor, P. Arrangoiz-Arriola, C. J. Sara- balis, and A. H. 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