{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:53ZOY2E7D32QS7BROICVZNPETX","short_pith_number":"pith:53ZOY2E7","canonical_record":{"source":{"id":"1008.2554","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-08-15T23:00:49Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"12cce4e4c8256b0e93d8e493a207189f774dc3da01600e7284b7be4eb9b7731c","abstract_canon_sha256":"9c521d610aacdc1d655bf8dd508678bf4755bff8cf3ac016260238327c03231a"},"schema_version":"1.0"},"canonical_sha256":"eef2ec689f1ef5097c3172055cb5e49dce98548383cddcbd773cc18ea76d9459","source":{"kind":"arxiv","id":"1008.2554","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.2554","created_at":"2026-05-18T04:27:16Z"},{"alias_kind":"arxiv_version","alias_value":"1008.2554v1","created_at":"2026-05-18T04:27:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.2554","created_at":"2026-05-18T04:27:16Z"},{"alias_kind":"pith_short_12","alias_value":"53ZOY2E7D32Q","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"53ZOY2E7D32QS7BR","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"53ZOY2E7","created_at":"2026-05-18T12:26:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:53ZOY2E7D32QS7BROICVZNPETX","target":"record","payload":{"canonical_record":{"source":{"id":"1008.2554","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-08-15T23:00:49Z","cross_cats_sorted":["cond-mat.other"],"title_canon_sha256":"12cce4e4c8256b0e93d8e493a207189f774dc3da01600e7284b7be4eb9b7731c","abstract_canon_sha256":"9c521d610aacdc1d655bf8dd508678bf4755bff8cf3ac016260238327c03231a"},"schema_version":"1.0"},"canonical_sha256":"eef2ec689f1ef5097c3172055cb5e49dce98548383cddcbd773cc18ea76d9459","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:27:16.247649Z","signature_b64":"T6O7L511naJhqoeRz3RyxZOQwDLilvFqTkFknUoRvcLL0HIVDnLVTRqPqlW8hhEGrCxSg7qThZXllJI+UhwgCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eef2ec689f1ef5097c3172055cb5e49dce98548383cddcbd773cc18ea76d9459","last_reissued_at":"2026-05-18T04:27:16.247004Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:27:16.247004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1008.2554","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":"2026-05-18T04:27:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9F2YF0OmZROEH8K7rwdFQ5kUGH9Fzw64vB4N9xTIdFhO8Q4F1XrmoGWao2QlJi21KkTqZhc+TvU6qxpJ2JV3Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:24:03.350497Z"},"content_sha256":"d8f6ef22345dbafaee18f94c15e3eeb59fa717f4ea07697178863bd38c18ace1","schema_version":"1.0","event_id":"sha256:d8f6ef22345dbafaee18f94c15e3eeb59fa717f4ea07697178863bd38c18ace1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:53ZOY2E7D32QS7BROICVZNPETX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Effect of Ohmic environment on optimally controlled flux-biased phase qubit","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other"],"primary_cat":"quant-ph","authors_text":"Amrit Poudel, Maxim G. Vavilov","submitted_at":"2010-08-15T23:00:49Z","abstract_excerpt":"We analyze the effect of environment on the gate operation of flux-biased phase qubits. We employ the master equation for a reduced density matrix of the qubit system coupled to an Ohmic environment, described by the Caldeira-Leggett model. Numerically solving this equation, we evaluate the gate error as a function of energy splitting between qubit states, junction capacitance, and temperature. The analysis is presented for single-quadrature microwave (control) pulses as well as for two-quadrature pulses, which lower the gate error significantly for idealized systems in the absence of environm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.2554","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":"2026-05-18T04:27:16Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Y1GpVWXfJklN2MepdnUq3/xldiPlSGovVPp9Q9REhtktDiqWOc44sUmCxWaGfQZslYJ1doHwjkWC5JjkmLN8Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:24:03.351074Z"},"content_sha256":"e978897de02f740ad94d3fe6a5b39fd761294901e333f49610fc7cc3f4537c6b","schema_version":"1.0","event_id":"sha256:e978897de02f740ad94d3fe6a5b39fd761294901e333f49610fc7cc3f4537c6b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/53ZOY2E7D32QS7BROICVZNPETX/bundle.json","state_url":"https://pith.science/pith/53ZOY2E7D32QS7BROICVZNPETX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/53ZOY2E7D32QS7BROICVZNPETX/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":"2026-06-05T01:24:03Z","links":{"resolver":"https://pith.science/pith/53ZOY2E7D32QS7BROICVZNPETX","bundle":"https://pith.science/pith/53ZOY2E7D32QS7BROICVZNPETX/bundle.json","state":"https://pith.science/pith/53ZOY2E7D32QS7BROICVZNPETX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/53ZOY2E7D32QS7BROICVZNPETX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:53ZOY2E7D32QS7BROICVZNPETX","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":"9c521d610aacdc1d655bf8dd508678bf4755bff8cf3ac016260238327c03231a","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-08-15T23:00:49Z","title_canon_sha256":"12cce4e4c8256b0e93d8e493a207189f774dc3da01600e7284b7be4eb9b7731c"},"schema_version":"1.0","source":{"id":"1008.2554","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.2554","created_at":"2026-05-18T04:27:16Z"},{"alias_kind":"arxiv_version","alias_value":"1008.2554v1","created_at":"2026-05-18T04:27:16Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.2554","created_at":"2026-05-18T04:27:16Z"},{"alias_kind":"pith_short_12","alias_value":"53ZOY2E7D32Q","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_16","alias_value":"53ZOY2E7D32QS7BR","created_at":"2026-05-18T12:26:04Z"},{"alias_kind":"pith_short_8","alias_value":"53ZOY2E7","created_at":"2026-05-18T12:26:04Z"}],"graph_snapshots":[{"event_id":"sha256:e978897de02f740ad94d3fe6a5b39fd761294901e333f49610fc7cc3f4537c6b","target":"graph","created_at":"2026-05-18T04:27:16Z","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 analyze the effect of environment on the gate operation of flux-biased phase qubits. We employ the master equation for a reduced density matrix of the qubit system coupled to an Ohmic environment, described by the Caldeira-Leggett model. Numerically solving this equation, we evaluate the gate error as a function of energy splitting between qubit states, junction capacitance, and temperature. The analysis is presented for single-quadrature microwave (control) pulses as well as for two-quadrature pulses, which lower the gate error significantly for idealized systems in the absence of environm","authors_text":"Amrit Poudel, Maxim G. Vavilov","cross_cats":["cond-mat.other"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-08-15T23:00:49Z","title":"Effect of Ohmic environment on optimally controlled flux-biased phase qubit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.2554","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:d8f6ef22345dbafaee18f94c15e3eeb59fa717f4ea07697178863bd38c18ace1","target":"record","created_at":"2026-05-18T04:27:16Z","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":"9c521d610aacdc1d655bf8dd508678bf4755bff8cf3ac016260238327c03231a","cross_cats_sorted":["cond-mat.other"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2010-08-15T23:00:49Z","title_canon_sha256":"12cce4e4c8256b0e93d8e493a207189f774dc3da01600e7284b7be4eb9b7731c"},"schema_version":"1.0","source":{"id":"1008.2554","kind":"arxiv","version":1}},"canonical_sha256":"eef2ec689f1ef5097c3172055cb5e49dce98548383cddcbd773cc18ea76d9459","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eef2ec689f1ef5097c3172055cb5e49dce98548383cddcbd773cc18ea76d9459","first_computed_at":"2026-05-18T04:27:16.247004Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:27:16.247004Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T6O7L511naJhqoeRz3RyxZOQwDLilvFqTkFknUoRvcLL0HIVDnLVTRqPqlW8hhEGrCxSg7qThZXllJI+UhwgCA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:27:16.247649Z","signed_message":"canonical_sha256_bytes"},"source_id":"1008.2554","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d8f6ef22345dbafaee18f94c15e3eeb59fa717f4ea07697178863bd38c18ace1","sha256:e978897de02f740ad94d3fe6a5b39fd761294901e333f49610fc7cc3f4537c6b"],"state_sha256":"5a0a2dd4aee99205c571277872008aeb81c0cc8cafd8bc07cbef6c9cfd083989"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A8JJLBXOGx+My9gldPTwErAvG28qylrdMJSFnqOAqcrIe+YRc99+ucJqdDQ7zy4bXSir+/BlDn0FC61MVjUFCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T01:24:03.353843Z","bundle_sha256":"7020c99753d9d1cb4fceaa3265a86642b502113f504c8700f0ae18844a670206"}}