{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:MQJC72TEAAWWOC4E2MROHMFWN5","short_pith_number":"pith:MQJC72TE","schema_version":"1.0","canonical_sha256":"64122fea64002d670b84d322e3b0b66f68632ecbba2252b6ef6d50b81b258d5f","source":{"kind":"arxiv","id":"1707.09113","version":1},"attestation_state":"computed","paper":{"title":"Security enhanced memory for quantum state","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"Tetsuya Mukai","submitted_at":"2017-07-28T06:06:34Z","abstract_excerpt":"Security enhancement is important in terms of both classical and quantum information. The recent development of a quantum storage device is noteworthy, and a coherence time of one second or longer has been demonstrated. On the other hand, although the encryption of a quantum bit or quantum memory has been proposed theoretically, no experiment has yet been carried out. Here we report the demonstration of a quantum memory with an encryption function that is realized by scrambling and retrieving the recorded quantum phase. We developed two independent Ramsey interferometers on an atomic ensemble "},"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":"1707.09113","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-07-28T06:06:34Z","cross_cats_sorted":["physics.atom-ph"],"title_canon_sha256":"ba8c9f160a24d6f9622daba0f01cb28b3c3ee4cd3c4f6bed96333be37cc84a2d","abstract_canon_sha256":"402a0c608262117d7ab3e6357347ef5a0831991954b33a89a6ce9c45d0c9ab14"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:39:17.060222Z","signature_b64":"B/Renlz6uMF4XAXXJVHCqrZXZtl9zZQ6JAmkGIF+v8aS9JTb9ABIvRrNzGP7fMojUMa6Sp9s590qjytnZ0DYDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"64122fea64002d670b84d322e3b0b66f68632ecbba2252b6ef6d50b81b258d5f","last_reissued_at":"2026-05-18T00:39:17.059701Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:39:17.059701Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Security enhanced memory for quantum state","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.atom-ph"],"primary_cat":"quant-ph","authors_text":"Tetsuya Mukai","submitted_at":"2017-07-28T06:06:34Z","abstract_excerpt":"Security enhancement is important in terms of both classical and quantum information. The recent development of a quantum storage device is noteworthy, and a coherence time of one second or longer has been demonstrated. On the other hand, although the encryption of a quantum bit or quantum memory has been proposed theoretically, no experiment has yet been carried out. Here we report the demonstration of a quantum memory with an encryption function that is realized by scrambling and retrieving the recorded quantum phase. We developed two independent Ramsey interferometers on an atomic ensemble "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.09113","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":""},"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":"1707.09113","created_at":"2026-05-18T00:39:17.059789+00:00"},{"alias_kind":"arxiv_version","alias_value":"1707.09113v1","created_at":"2026-05-18T00:39:17.059789+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.09113","created_at":"2026-05-18T00:39:17.059789+00:00"},{"alias_kind":"pith_short_12","alias_value":"MQJC72TEAAWW","created_at":"2026-05-18T12:31:31.346846+00:00"},{"alias_kind":"pith_short_16","alias_value":"MQJC72TEAAWWOC4E","created_at":"2026-05-18T12:31:31.346846+00:00"},{"alias_kind":"pith_short_8","alias_value":"MQJC72TE","created_at":"2026-05-18T12:31:31.346846+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/MQJC72TEAAWWOC4E2MROHMFWN5","json":"https://pith.science/pith/MQJC72TEAAWWOC4E2MROHMFWN5.json","graph_json":"https://pith.science/api/pith-number/MQJC72TEAAWWOC4E2MROHMFWN5/graph.json","events_json":"https://pith.science/api/pith-number/MQJC72TEAAWWOC4E2MROHMFWN5/events.json","paper":"https://pith.science/paper/MQJC72TE"},"agent_actions":{"view_html":"https://pith.science/pith/MQJC72TEAAWWOC4E2MROHMFWN5","download_json":"https://pith.science/pith/MQJC72TEAAWWOC4E2MROHMFWN5.json","view_paper":"https://pith.science/paper/MQJC72TE","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1707.09113&json=true","fetch_graph":"https://pith.science/api/pith-number/MQJC72TEAAWWOC4E2MROHMFWN5/graph.json","fetch_events":"https://pith.science/api/pith-number/MQJC72TEAAWWOC4E2MROHMFWN5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/MQJC72TEAAWWOC4E2MROHMFWN5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/MQJC72TEAAWWOC4E2MROHMFWN5/action/storage_attestation","attest_author":"https://pith.science/pith/MQJC72TEAAWWOC4E2MROHMFWN5/action/author_attestation","sign_citation":"https://pith.science/pith/MQJC72TEAAWWOC4E2MROHMFWN5/action/citation_signature","submit_replication":"https://pith.science/pith/MQJC72TEAAWWOC4E2MROHMFWN5/action/replication_record"}},"created_at":"2026-05-18T00:39:17.059789+00:00","updated_at":"2026-05-18T00:39:17.059789+00:00"}