{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:4OKIVIY3MNNMPEUPROQLQBDLJI","short_pith_number":"pith:4OKIVIY3","schema_version":"1.0","canonical_sha256":"e3948aa31b635ac7928f8ba0b8046b4a152789532ee095031a05efdba5d23b07","source":{"kind":"arxiv","id":"2607.08447","version":1},"attestation_state":"computed","paper":{"title":"Simulation of exchange coupling effects in double quantum dot FinFET-like structures","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alexander Maeder, Ilan Bouquet, Mathieu Luisier","submitted_at":"2026-07-09T13:08:37Z","abstract_excerpt":"By leveraging a GPU-accelerated Schr\\\"odinger-Poisson (SP) solver, we characterize exchange coupling in a hole spin double-qubit device involving a double quantum dot (DQD) system formed inside a 5-gate silicon fin field-effect transistor (FinFET) similar to real experimental structures. The self-consistent SP simulations rely on a finite difference discretization of the 3D volume and on a Luttinger-Kohn 6x6 kp Hamiltonian accounting for magnetic fields and strain distribution. They return the gate-induced confined electronic states and the corresponding electrostatic potential hosting the DQD"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2607.08447","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"quant-ph","submitted_at":"2026-07-09T13:08:37Z","cross_cats_sorted":[],"title_canon_sha256":"b0b043a787f02a6cf140ee2a9660d8b6f0449bf998b71b23b37f6562f5d6cbac","abstract_canon_sha256":"3a5d614e0454e98730681a8c687714910b87ab25b09161af985872f83afdc93f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-10T01:19:50.855230Z","signature_b64":"svCaVtASqtZxA4SW/4p4rhSzuAjCFlGC36d185niRGlCedYZ++mtBC2rqD3hVoAqtNa6LKrHFZvipRloxvXVCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e3948aa31b635ac7928f8ba0b8046b4a152789532ee095031a05efdba5d23b07","last_reissued_at":"2026-07-10T01:19:50.854855Z","signature_status":"signed_v1","first_computed_at":"2026-07-10T01:19:50.854855Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Simulation of exchange coupling effects in double quantum dot FinFET-like structures","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Alexander Maeder, Ilan Bouquet, Mathieu Luisier","submitted_at":"2026-07-09T13:08:37Z","abstract_excerpt":"By leveraging a GPU-accelerated Schr\\\"odinger-Poisson (SP) solver, we characterize exchange coupling in a hole spin double-qubit device involving a double quantum dot (DQD) system formed inside a 5-gate silicon fin field-effect transistor (FinFET) similar to real experimental structures. The self-consistent SP simulations rely on a finite difference discretization of the 3D volume and on a Luttinger-Kohn 6x6 kp Hamiltonian accounting for magnetic fields and strain distribution. They return the gate-induced confined electronic states and the corresponding electrostatic potential hosting the DQD"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.08447","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.08447/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2607.08447","created_at":"2026-07-10T01:19:50.854913+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.08447v1","created_at":"2026-07-10T01:19:50.854913+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.08447","created_at":"2026-07-10T01:19:50.854913+00:00"},{"alias_kind":"pith_short_12","alias_value":"4OKIVIY3MNNM","created_at":"2026-07-10T01:19:50.854913+00:00"},{"alias_kind":"pith_short_16","alias_value":"4OKIVIY3MNNMPEUP","created_at":"2026-07-10T01:19:50.854913+00:00"},{"alias_kind":"pith_short_8","alias_value":"4OKIVIY3","created_at":"2026-07-10T01:19:50.854913+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/4OKIVIY3MNNMPEUPROQLQBDLJI","json":"https://pith.science/pith/4OKIVIY3MNNMPEUPROQLQBDLJI.json","graph_json":"https://pith.science/api/pith-number/4OKIVIY3MNNMPEUPROQLQBDLJI/graph.json","events_json":"https://pith.science/api/pith-number/4OKIVIY3MNNMPEUPROQLQBDLJI/events.json","paper":"https://pith.science/paper/4OKIVIY3"},"agent_actions":{"view_html":"https://pith.science/pith/4OKIVIY3MNNMPEUPROQLQBDLJI","download_json":"https://pith.science/pith/4OKIVIY3MNNMPEUPROQLQBDLJI.json","view_paper":"https://pith.science/paper/4OKIVIY3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.08447&json=true","fetch_graph":"https://pith.science/api/pith-number/4OKIVIY3MNNMPEUPROQLQBDLJI/graph.json","fetch_events":"https://pith.science/api/pith-number/4OKIVIY3MNNMPEUPROQLQBDLJI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4OKIVIY3MNNMPEUPROQLQBDLJI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4OKIVIY3MNNMPEUPROQLQBDLJI/action/storage_attestation","attest_author":"https://pith.science/pith/4OKIVIY3MNNMPEUPROQLQBDLJI/action/author_attestation","sign_citation":"https://pith.science/pith/4OKIVIY3MNNMPEUPROQLQBDLJI/action/citation_signature","submit_replication":"https://pith.science/pith/4OKIVIY3MNNMPEUPROQLQBDLJI/action/replication_record"}},"created_at":"2026-07-10T01:19:50.854913+00:00","updated_at":"2026-07-10T01:19:50.854913+00:00"}