{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2013:LTTU7TCF3EXPTFRPYQO45JQKWL","short_pith_number":"pith:LTTU7TCF","schema_version":"1.0","canonical_sha256":"5ce74fcc45d92ef9962fc41dcea60ab2e3ff8485c203f6575eb8dd4fa5a9536c","source":{"kind":"arxiv","id":"1307.3393","version":3},"attestation_state":"computed","paper":{"title":"Stellarators close to quasisymmetry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Felix I. Parra, Ivan Calvo, J. Arturo Alonso, J. L. Velasco","submitted_at":"2013-07-12T10:01:47Z","abstract_excerpt":"Rotation is favorable for confinement, but a stellarator can rotate at high speeds if and only if it is sufficiently close to quasisymmetry. This article investigates how close it needs to be. For a magnetic field $\\mathbf{B} = \\mathbf{B}_0 + \\alpha \\mathbf{B}_1$, where $\\mathbf{B}_0$ is quasisymmetric, $\\alpha\\mathbf{B}_1$ is a deviation from quasisymmetry, and $\\alpha\\ll 1$, the stellarator can rotate at high velocities if $\\alpha < \\epsilon^{1/2}$, with $\\epsilon$ the ion Larmor radius over the characteristic variation length of $\\mathbf{B}_0$. The cases in which this result may break down "},"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":"1307.3393","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.plasm-ph","submitted_at":"2013-07-12T10:01:47Z","cross_cats_sorted":[],"title_canon_sha256":"5c1391a66788fe30080e8d08fb32d30ccfa4c8d6480180232dc1ec9da8a4e814","abstract_canon_sha256":"917c6823e33227ed69a5736973a758dcca0d3076fc48d39f3b113ab25f06027a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:48:51.139744Z","signature_b64":"TGBlJnqySK53NlQpYRF9yxjYZEmDRt1pAQCN0zDwMak733EGgZHQyZkK/YMGTbk9G7SmRQntaaSd9P4bQSSABg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5ce74fcc45d92ef9962fc41dcea60ab2e3ff8485c203f6575eb8dd4fa5a9536c","last_reissued_at":"2026-05-18T01:48:51.139085Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:48:51.139085Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Stellarators close to quasisymmetry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"Felix I. Parra, Ivan Calvo, J. Arturo Alonso, J. L. Velasco","submitted_at":"2013-07-12T10:01:47Z","abstract_excerpt":"Rotation is favorable for confinement, but a stellarator can rotate at high speeds if and only if it is sufficiently close to quasisymmetry. This article investigates how close it needs to be. For a magnetic field $\\mathbf{B} = \\mathbf{B}_0 + \\alpha \\mathbf{B}_1$, where $\\mathbf{B}_0$ is quasisymmetric, $\\alpha\\mathbf{B}_1$ is a deviation from quasisymmetry, and $\\alpha\\ll 1$, the stellarator can rotate at high velocities if $\\alpha < \\epsilon^{1/2}$, with $\\epsilon$ the ion Larmor radius over the characteristic variation length of $\\mathbf{B}_0$. The cases in which this result may break down "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.3393","kind":"arxiv","version":3},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1307.3393","created_at":"2026-05-18T01:48:51.139192+00:00"},{"alias_kind":"arxiv_version","alias_value":"1307.3393v3","created_at":"2026-05-18T01:48:51.139192+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.3393","created_at":"2026-05-18T01:48:51.139192+00:00"},{"alias_kind":"pith_short_12","alias_value":"LTTU7TCF3EXP","created_at":"2026-05-18T12:27:51.066281+00:00"},{"alias_kind":"pith_short_16","alias_value":"LTTU7TCF3EXPTFRP","created_at":"2026-05-18T12:27:51.066281+00:00"},{"alias_kind":"pith_short_8","alias_value":"LTTU7TCF","created_at":"2026-05-18T12:27:51.066281+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/LTTU7TCF3EXPTFRPYQO45JQKWL","json":"https://pith.science/pith/LTTU7TCF3EXPTFRPYQO45JQKWL.json","graph_json":"https://pith.science/api/pith-number/LTTU7TCF3EXPTFRPYQO45JQKWL/graph.json","events_json":"https://pith.science/api/pith-number/LTTU7TCF3EXPTFRPYQO45JQKWL/events.json","paper":"https://pith.science/paper/LTTU7TCF"},"agent_actions":{"view_html":"https://pith.science/pith/LTTU7TCF3EXPTFRPYQO45JQKWL","download_json":"https://pith.science/pith/LTTU7TCF3EXPTFRPYQO45JQKWL.json","view_paper":"https://pith.science/paper/LTTU7TCF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1307.3393&json=true","fetch_graph":"https://pith.science/api/pith-number/LTTU7TCF3EXPTFRPYQO45JQKWL/graph.json","fetch_events":"https://pith.science/api/pith-number/LTTU7TCF3EXPTFRPYQO45JQKWL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LTTU7TCF3EXPTFRPYQO45JQKWL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LTTU7TCF3EXPTFRPYQO45JQKWL/action/storage_attestation","attest_author":"https://pith.science/pith/LTTU7TCF3EXPTFRPYQO45JQKWL/action/author_attestation","sign_citation":"https://pith.science/pith/LTTU7TCF3EXPTFRPYQO45JQKWL/action/citation_signature","submit_replication":"https://pith.science/pith/LTTU7TCF3EXPTFRPYQO45JQKWL/action/replication_record"}},"created_at":"2026-05-18T01:48:51.139192+00:00","updated_at":"2026-05-18T01:48:51.139192+00:00"}