{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:HV243ILL7IB3XK5UQAR24N4SFY","short_pith_number":"pith:HV243ILL","canonical_record":{"source":{"id":"1403.4397","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-03-18T10:31:38Z","cross_cats_sorted":[],"title_canon_sha256":"ff38d38d85e4e1d25b854bcc1c120b2f8edfc5957f54030b31240278c59d5f94","abstract_canon_sha256":"1d6130b69577cf73da3770eba35886066089e76e8f08ebf2207ce7141f3cac3b"},"schema_version":"1.0"},"canonical_sha256":"3d75cda16bfa03bbabb48023ae37922e224cae83ffd721fb501c5573fe154805","source":{"kind":"arxiv","id":"1403.4397","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.4397","created_at":"2026-05-18T02:42:46Z"},{"alias_kind":"arxiv_version","alias_value":"1403.4397v3","created_at":"2026-05-18T02:42:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.4397","created_at":"2026-05-18T02:42:46Z"},{"alias_kind":"pith_short_12","alias_value":"HV243ILL7IB3","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HV243ILL7IB3XK5U","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HV243ILL","created_at":"2026-05-18T12:28:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:HV243ILL7IB3XK5UQAR24N4SFY","target":"record","payload":{"canonical_record":{"source":{"id":"1403.4397","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-03-18T10:31:38Z","cross_cats_sorted":[],"title_canon_sha256":"ff38d38d85e4e1d25b854bcc1c120b2f8edfc5957f54030b31240278c59d5f94","abstract_canon_sha256":"1d6130b69577cf73da3770eba35886066089e76e8f08ebf2207ce7141f3cac3b"},"schema_version":"1.0"},"canonical_sha256":"3d75cda16bfa03bbabb48023ae37922e224cae83ffd721fb501c5573fe154805","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:42:46.356907Z","signature_b64":"CnWVoPKcu+N1Xoc5/JAlsZcm1f+sPtx4LQNfKjIwgHOje6KeBMb28R+mKVzjyjhloUtI0jI7cMSYr8rGpodRAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3d75cda16bfa03bbabb48023ae37922e224cae83ffd721fb501c5573fe154805","last_reissued_at":"2026-05-18T02:42:46.356449Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:42:46.356449Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1403.4397","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:42:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MBmtTsxEzNUcvilbbH6sKgsanq6tQB1OkijhCvUS3eD0qDRmdYsYM8dvIlCbnj1U49FbiD3tCMYaPQt4tl/NAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:25:57.866870Z"},"content_sha256":"ee8e7ed999377f899da6c74645e17bd8e00622f969ee1ceb91fd83faffcfcef3","schema_version":"1.0","event_id":"sha256:ee8e7ed999377f899da6c74645e17bd8e00622f969ee1ceb91fd83faffcfcef3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:HV243ILL7IB3XK5UQAR24N4SFY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Demonstration of coherent time-frequency Schmidt mode selection using dispersion-engineered frequency conversion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Andreas Eckstein, Benjamin Brecht, Christine Silberhorn, Hubertus Suche, Linda Sansoni, Raimund Ricken, Viktor Quiring","submitted_at":"2014-03-18T10:31:38Z","abstract_excerpt":"Time-frequency Schmidt (TFS) modes of ultrafast quantum states are naturally compatible with high bit-rate integrated quantum communication networks. Thus they offer an attractive alternative for the realization of high dimensional quantum optics. Here, we present a quantum pulse gate based on dispersion-engineered ultrafast frequency conversion in a nonlinear optical waveguide, which is a key element for harnessing the potential of TFS modes. We experimentally retrieve the modal spectral-temporal structure of our device and demonstrate a single-mode operation fidelity of 80\\%, which is limite"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.4397","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:42:46Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5EsHRmKSxiugcxrtmVnGq8rBAa6RVAdjVayjCovcu6kFMj15WvV70aovh0xWyS+s5jDgrqyn4mwv5D7Ud5MSDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:25:57.867218Z"},"content_sha256":"2de97ebbbc8013e588b2e0e703d4ccbcbf53d1bf8bb5cee664933bab8169d9ec","schema_version":"1.0","event_id":"sha256:2de97ebbbc8013e588b2e0e703d4ccbcbf53d1bf8bb5cee664933bab8169d9ec"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HV243ILL7IB3XK5UQAR24N4SFY/bundle.json","state_url":"https://pith.science/pith/HV243ILL7IB3XK5UQAR24N4SFY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HV243ILL7IB3XK5UQAR24N4SFY/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-01T22:25:57Z","links":{"resolver":"https://pith.science/pith/HV243ILL7IB3XK5UQAR24N4SFY","bundle":"https://pith.science/pith/HV243ILL7IB3XK5UQAR24N4SFY/bundle.json","state":"https://pith.science/pith/HV243ILL7IB3XK5UQAR24N4SFY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HV243ILL7IB3XK5UQAR24N4SFY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:HV243ILL7IB3XK5UQAR24N4SFY","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"1d6130b69577cf73da3770eba35886066089e76e8f08ebf2207ce7141f3cac3b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-03-18T10:31:38Z","title_canon_sha256":"ff38d38d85e4e1d25b854bcc1c120b2f8edfc5957f54030b31240278c59d5f94"},"schema_version":"1.0","source":{"id":"1403.4397","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.4397","created_at":"2026-05-18T02:42:46Z"},{"alias_kind":"arxiv_version","alias_value":"1403.4397v3","created_at":"2026-05-18T02:42:46Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.4397","created_at":"2026-05-18T02:42:46Z"},{"alias_kind":"pith_short_12","alias_value":"HV243ILL7IB3","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HV243ILL7IB3XK5U","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HV243ILL","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:2de97ebbbc8013e588b2e0e703d4ccbcbf53d1bf8bb5cee664933bab8169d9ec","target":"graph","created_at":"2026-05-18T02:42:46Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"Time-frequency Schmidt (TFS) modes of ultrafast quantum states are naturally compatible with high bit-rate integrated quantum communication networks. Thus they offer an attractive alternative for the realization of high dimensional quantum optics. Here, we present a quantum pulse gate based on dispersion-engineered ultrafast frequency conversion in a nonlinear optical waveguide, which is a key element for harnessing the potential of TFS modes. We experimentally retrieve the modal spectral-temporal structure of our device and demonstrate a single-mode operation fidelity of 80\\%, which is limite","authors_text":"Andreas Eckstein, Benjamin Brecht, Christine Silberhorn, Hubertus Suche, Linda Sansoni, Raimund Ricken, Viktor Quiring","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-03-18T10:31:38Z","title":"Demonstration of coherent time-frequency Schmidt mode selection using dispersion-engineered frequency conversion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.4397","kind":"arxiv","version":3},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:ee8e7ed999377f899da6c74645e17bd8e00622f969ee1ceb91fd83faffcfcef3","target":"record","created_at":"2026-05-18T02:42:46Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"1d6130b69577cf73da3770eba35886066089e76e8f08ebf2207ce7141f3cac3b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2014-03-18T10:31:38Z","title_canon_sha256":"ff38d38d85e4e1d25b854bcc1c120b2f8edfc5957f54030b31240278c59d5f94"},"schema_version":"1.0","source":{"id":"1403.4397","kind":"arxiv","version":3}},"canonical_sha256":"3d75cda16bfa03bbabb48023ae37922e224cae83ffd721fb501c5573fe154805","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3d75cda16bfa03bbabb48023ae37922e224cae83ffd721fb501c5573fe154805","first_computed_at":"2026-05-18T02:42:46.356449Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:42:46.356449Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CnWVoPKcu+N1Xoc5/JAlsZcm1f+sPtx4LQNfKjIwgHOje6KeBMb28R+mKVzjyjhloUtI0jI7cMSYr8rGpodRAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:42:46.356907Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.4397","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ee8e7ed999377f899da6c74645e17bd8e00622f969ee1ceb91fd83faffcfcef3","sha256:2de97ebbbc8013e588b2e0e703d4ccbcbf53d1bf8bb5cee664933bab8169d9ec"],"state_sha256":"b57126bbe432956617047a021b53fe98f62bd086f97fede50c665127c20287bc"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xPD53X/dMGILbJWZk8Hs5bmE64n6iCORqB30dSB3+59ChacqPC/+5qcCAHPlFHyIYWJwXWHW2Bk84RR3dij4Ag==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T22:25:57.869197Z","bundle_sha256":"0a760b0a40f024a211be974314863615cf7cb5a0df72a0109475e9782602090c"}}