{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:KL6QQTFEF2VJB34OXKOGXYQHQM","short_pith_number":"pith:KL6QQTFE","schema_version":"1.0","canonical_sha256":"52fd084ca42eaa90ef8eba9c6be207831d71b3e36466a7b1d6369b39d5582be6","source":{"kind":"arxiv","id":"1201.1932","version":2},"attestation_state":"computed","paper":{"title":"A quantum phase transition in a quantum external field: Superposing two magnetic phases","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other","cond-mat.quant-gas"],"primary_cat":"quant-ph","authors_text":"Bogdan Damski, Marek M. Rams, Michael Zwolak","submitted_at":"2012-01-09T21:49:25Z","abstract_excerpt":"We study an Ising chain undergoing a quantum phase transition in a quantum magnetic field. Such a field can be emulated by coupling the chain to a central spin initially in a superposition state. We show that - by adiabatically driving such a system - one can prepare a quantum superposition of any two ground states of the Ising chain. In particular, one can end up with the Ising chain in a superposition of ferromagnetic and paramagnetic phases -- a scenario with no analogue in prior studies of quantum phase transitions. Remarkably, the resulting magnetization of the chain encodes the position "},"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":"1201.1932","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2012-01-09T21:49:25Z","cross_cats_sorted":["cond-mat.other","cond-mat.quant-gas"],"title_canon_sha256":"8f63337b7a67667e6e4d2c14f848ddd501fd18379fcada171c0234fe8b365396","abstract_canon_sha256":"b955682142d50014d14b805bce0817c7906c2dd4de108a4c70b0304e1530a551"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:45:41.667485Z","signature_b64":"nwicH5pTtzfjPJbcl4R4MLuS1D9BHTbXO2qhY9A5fsMjteQMPmvdhlafAqcPcp/Dm3C/M2PO910TUAF5O56hDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"52fd084ca42eaa90ef8eba9c6be207831d71b3e36466a7b1d6369b39d5582be6","last_reissued_at":"2026-05-18T03:45:41.666669Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:45:41.666669Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A quantum phase transition in a quantum external field: Superposing two magnetic phases","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other","cond-mat.quant-gas"],"primary_cat":"quant-ph","authors_text":"Bogdan Damski, Marek M. Rams, Michael Zwolak","submitted_at":"2012-01-09T21:49:25Z","abstract_excerpt":"We study an Ising chain undergoing a quantum phase transition in a quantum magnetic field. Such a field can be emulated by coupling the chain to a central spin initially in a superposition state. We show that - by adiabatically driving such a system - one can prepare a quantum superposition of any two ground states of the Ising chain. In particular, one can end up with the Ising chain in a superposition of ferromagnetic and paramagnetic phases -- a scenario with no analogue in prior studies of quantum phase transitions. Remarkably, the resulting magnetization of the chain encodes the position "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.1932","kind":"arxiv","version":2},"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":"1201.1932","created_at":"2026-05-18T03:45:41.666814+00:00"},{"alias_kind":"arxiv_version","alias_value":"1201.1932v2","created_at":"2026-05-18T03:45:41.666814+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.1932","created_at":"2026-05-18T03:45:41.666814+00:00"},{"alias_kind":"pith_short_12","alias_value":"KL6QQTFEF2VJ","created_at":"2026-05-18T12:27:11.947152+00:00"},{"alias_kind":"pith_short_16","alias_value":"KL6QQTFEF2VJB34O","created_at":"2026-05-18T12:27:11.947152+00:00"},{"alias_kind":"pith_short_8","alias_value":"KL6QQTFE","created_at":"2026-05-18T12:27:11.947152+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/KL6QQTFEF2VJB34OXKOGXYQHQM","json":"https://pith.science/pith/KL6QQTFEF2VJB34OXKOGXYQHQM.json","graph_json":"https://pith.science/api/pith-number/KL6QQTFEF2VJB34OXKOGXYQHQM/graph.json","events_json":"https://pith.science/api/pith-number/KL6QQTFEF2VJB34OXKOGXYQHQM/events.json","paper":"https://pith.science/paper/KL6QQTFE"},"agent_actions":{"view_html":"https://pith.science/pith/KL6QQTFEF2VJB34OXKOGXYQHQM","download_json":"https://pith.science/pith/KL6QQTFEF2VJB34OXKOGXYQHQM.json","view_paper":"https://pith.science/paper/KL6QQTFE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1201.1932&json=true","fetch_graph":"https://pith.science/api/pith-number/KL6QQTFEF2VJB34OXKOGXYQHQM/graph.json","fetch_events":"https://pith.science/api/pith-number/KL6QQTFEF2VJB34OXKOGXYQHQM/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/KL6QQTFEF2VJB34OXKOGXYQHQM/action/timestamp_anchor","attest_storage":"https://pith.science/pith/KL6QQTFEF2VJB34OXKOGXYQHQM/action/storage_attestation","attest_author":"https://pith.science/pith/KL6QQTFEF2VJB34OXKOGXYQHQM/action/author_attestation","sign_citation":"https://pith.science/pith/KL6QQTFEF2VJB34OXKOGXYQHQM/action/citation_signature","submit_replication":"https://pith.science/pith/KL6QQTFEF2VJB34OXKOGXYQHQM/action/replication_record"}},"created_at":"2026-05-18T03:45:41.666814+00:00","updated_at":"2026-05-18T03:45:41.666814+00:00"}