{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:ZQ4LF2FXPY2ZWXCO57C7HYI5BY","short_pith_number":"pith:ZQ4LF2FX","canonical_record":{"source":{"id":"1704.05083","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-17T18:15:05Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"f5314a14d76052a8c1a50dec284fe0a2c237a9ad69f933bff3419f4ff7c700ea","abstract_canon_sha256":"77ef9982e62813e83f5758b4649d4dd01578a77f2d9fda5c539956172fe19ddf"},"schema_version":"1.0"},"canonical_sha256":"cc38b2e8b77e359b5c4eefc5f3e11d0e22e0d5e87dff97b2afeaea1f2ed612ff","source":{"kind":"arxiv","id":"1704.05083","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.05083","created_at":"2026-05-18T00:36:24Z"},{"alias_kind":"arxiv_version","alias_value":"1704.05083v1","created_at":"2026-05-18T00:36:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.05083","created_at":"2026-05-18T00:36:24Z"},{"alias_kind":"pith_short_12","alias_value":"ZQ4LF2FXPY2Z","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZQ4LF2FXPY2ZWXCO","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZQ4LF2FX","created_at":"2026-05-18T12:31:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:ZQ4LF2FXPY2ZWXCO57C7HYI5BY","target":"record","payload":{"canonical_record":{"source":{"id":"1704.05083","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-17T18:15:05Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"f5314a14d76052a8c1a50dec284fe0a2c237a9ad69f933bff3419f4ff7c700ea","abstract_canon_sha256":"77ef9982e62813e83f5758b4649d4dd01578a77f2d9fda5c539956172fe19ddf"},"schema_version":"1.0"},"canonical_sha256":"cc38b2e8b77e359b5c4eefc5f3e11d0e22e0d5e87dff97b2afeaea1f2ed612ff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:24.243484Z","signature_b64":"kqn2/qLdXm3p2sg8pHVYzCwb69iyywqJUzFMJbO3ZzAtcRockChg7A9hzG1BZ2vaMiRdmzPIXFjalYWHiOa8BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cc38b2e8b77e359b5c4eefc5f3e11d0e22e0d5e87dff97b2afeaea1f2ed612ff","last_reissued_at":"2026-05-18T00:36:24.242811Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:24.242811Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1704.05083","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:36:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lSCtKHIXAydTxYXFzVDPdgLfKZP6MQuZ+Ns89Nz7ZPXAktSXGjR4nl0xFEFw8z7Dqj4LPN3Vpu3uOSu6ldRWDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T03:43:07.699306Z"},"content_sha256":"db1a75d6afe43eb0511171e87be2a42b6f1163f9a82457e4c7854533a748fab9","schema_version":"1.0","event_id":"sha256:db1a75d6afe43eb0511171e87be2a42b6f1163f9a82457e4c7854533a748fab9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:ZQ4LF2FXPY2ZWXCO57C7HYI5BY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-degenerate parametric resonance in tunable superconducting cavity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"quant-ph","authors_text":"Vitaly Shumeiko, Waltraut Wustmann","submitted_at":"2017-04-17T18:15:05Z","abstract_excerpt":"We develop a theory for non-degenerate parametric resonance in a tunable superconducting cavity. We focus on nonlinear effects that are caused by nonlinear Josephson elements connected to the cavity. We analyze parametric amplification in a strong nonlinear regime at the parametric instability threshold, and calculate maximum gain values. Above the threshold, in the parametric oscillator regime the linear cavity response diverges at the oscillator frequency at all pump strengths. We show that this divergence is related to the continuous degeneracy of the free oscillator state with respect to t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.05083","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:36:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"q8Dhd/LCB5XCt3oLsMpOW+r6ogr+cl+XxRtT1BCtwJJ5WWrDWOcTS540L0pu0Qm5Xg7hoZNVKBm00Swt+bkZCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T03:43:07.699943Z"},"content_sha256":"9d3afaa84384575966ff4caf2ef920804cd19ac76a9685b09c0b0d6df6f52fe0","schema_version":"1.0","event_id":"sha256:9d3afaa84384575966ff4caf2ef920804cd19ac76a9685b09c0b0d6df6f52fe0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ZQ4LF2FXPY2ZWXCO57C7HYI5BY/bundle.json","state_url":"https://pith.science/pith/ZQ4LF2FXPY2ZWXCO57C7HYI5BY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ZQ4LF2FXPY2ZWXCO57C7HYI5BY/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":"2026-06-07T03:43:07Z","links":{"resolver":"https://pith.science/pith/ZQ4LF2FXPY2ZWXCO57C7HYI5BY","bundle":"https://pith.science/pith/ZQ4LF2FXPY2ZWXCO57C7HYI5BY/bundle.json","state":"https://pith.science/pith/ZQ4LF2FXPY2ZWXCO57C7HYI5BY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ZQ4LF2FXPY2ZWXCO57C7HYI5BY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ZQ4LF2FXPY2ZWXCO57C7HYI5BY","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":"77ef9982e62813e83f5758b4649d4dd01578a77f2d9fda5c539956172fe19ddf","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-17T18:15:05Z","title_canon_sha256":"f5314a14d76052a8c1a50dec284fe0a2c237a9ad69f933bff3419f4ff7c700ea"},"schema_version":"1.0","source":{"id":"1704.05083","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1704.05083","created_at":"2026-05-18T00:36:24Z"},{"alias_kind":"arxiv_version","alias_value":"1704.05083v1","created_at":"2026-05-18T00:36:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1704.05083","created_at":"2026-05-18T00:36:24Z"},{"alias_kind":"pith_short_12","alias_value":"ZQ4LF2FXPY2Z","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_16","alias_value":"ZQ4LF2FXPY2ZWXCO","created_at":"2026-05-18T12:31:59Z"},{"alias_kind":"pith_short_8","alias_value":"ZQ4LF2FX","created_at":"2026-05-18T12:31:59Z"}],"graph_snapshots":[{"event_id":"sha256:9d3afaa84384575966ff4caf2ef920804cd19ac76a9685b09c0b0d6df6f52fe0","target":"graph","created_at":"2026-05-18T00:36:24Z","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":"We develop a theory for non-degenerate parametric resonance in a tunable superconducting cavity. We focus on nonlinear effects that are caused by nonlinear Josephson elements connected to the cavity. We analyze parametric amplification in a strong nonlinear regime at the parametric instability threshold, and calculate maximum gain values. Above the threshold, in the parametric oscillator regime the linear cavity response diverges at the oscillator frequency at all pump strengths. We show that this divergence is related to the continuous degeneracy of the free oscillator state with respect to t","authors_text":"Vitaly Shumeiko, Waltraut Wustmann","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-17T18:15:05Z","title":"Non-degenerate parametric resonance in tunable superconducting cavity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1704.05083","kind":"arxiv","version":1},"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:db1a75d6afe43eb0511171e87be2a42b6f1163f9a82457e4c7854533a748fab9","target":"record","created_at":"2026-05-18T00:36:24Z","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":"77ef9982e62813e83f5758b4649d4dd01578a77f2d9fda5c539956172fe19ddf","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-04-17T18:15:05Z","title_canon_sha256":"f5314a14d76052a8c1a50dec284fe0a2c237a9ad69f933bff3419f4ff7c700ea"},"schema_version":"1.0","source":{"id":"1704.05083","kind":"arxiv","version":1}},"canonical_sha256":"cc38b2e8b77e359b5c4eefc5f3e11d0e22e0d5e87dff97b2afeaea1f2ed612ff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cc38b2e8b77e359b5c4eefc5f3e11d0e22e0d5e87dff97b2afeaea1f2ed612ff","first_computed_at":"2026-05-18T00:36:24.242811Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:24.242811Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kqn2/qLdXm3p2sg8pHVYzCwb69iyywqJUzFMJbO3ZzAtcRockChg7A9hzG1BZ2vaMiRdmzPIXFjalYWHiOa8BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:24.243484Z","signed_message":"canonical_sha256_bytes"},"source_id":"1704.05083","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:db1a75d6afe43eb0511171e87be2a42b6f1163f9a82457e4c7854533a748fab9","sha256:9d3afaa84384575966ff4caf2ef920804cd19ac76a9685b09c0b0d6df6f52fe0"],"state_sha256":"678727c5981e8779cf152a7707bdadb200db87ff7d1c42a8fd8f5be31832bad3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"95GGx1tWebmt2Wyn0DJTxmedzBBcdmDZu9fMArDCS3+lezfXh3gZOiN6XPkEdria7nfQuzsJVdYEriguOl9DCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T03:43:07.703036Z","bundle_sha256":"d112e8d4d364c9f840fab2c2223f9cc2d219dc80e3dbaab7730b6accc14c2110"}}