{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:4AH5NNR7LR2BVCZTD55QLU6NO5","short_pith_number":"pith:4AH5NNR7","canonical_record":{"source":{"id":"1410.8715","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-31T12:05:53Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"0b276d7db217c21f0f70a2b25f38e69cece64719a09b4812fb3c4285ffe15642","abstract_canon_sha256":"515f7210f7a3148f6cb373f51f5c03a269cfae82c2174671629ef9010cb1d60b"},"schema_version":"1.0"},"canonical_sha256":"e00fd6b63f5c741a8b331f7b05d3cd7760bb555d69ee8e600b9a40129fe4b72e","source":{"kind":"arxiv","id":"1410.8715","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.8715","created_at":"2026-05-18T01:04:09Z"},{"alias_kind":"arxiv_version","alias_value":"1410.8715v2","created_at":"2026-05-18T01:04:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.8715","created_at":"2026-05-18T01:04:09Z"},{"alias_kind":"pith_short_12","alias_value":"4AH5NNR7LR2B","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4AH5NNR7LR2BVCZT","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4AH5NNR7","created_at":"2026-05-18T12:28:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:4AH5NNR7LR2BVCZTD55QLU6NO5","target":"record","payload":{"canonical_record":{"source":{"id":"1410.8715","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-31T12:05:53Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"0b276d7db217c21f0f70a2b25f38e69cece64719a09b4812fb3c4285ffe15642","abstract_canon_sha256":"515f7210f7a3148f6cb373f51f5c03a269cfae82c2174671629ef9010cb1d60b"},"schema_version":"1.0"},"canonical_sha256":"e00fd6b63f5c741a8b331f7b05d3cd7760bb555d69ee8e600b9a40129fe4b72e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:09.599917Z","signature_b64":"r9lAIoRkgI6yAVsv4HenSfEr1Q8WET7R2O/MO3vCJBFkPkZ2EixKpeKCIiYjgECM710CS8HoLtTNTPlMIIImAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e00fd6b63f5c741a8b331f7b05d3cd7760bb555d69ee8e600b9a40129fe4b72e","last_reissued_at":"2026-05-18T01:04:09.599181Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:09.599181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.8715","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:04:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eznBEPjwZIWQsrrjBbXB863+YCW2zMPK02Ej576GIMoGAktlAzVc/lmSfM0rmRRpojtMsGWDGUdSQwQLJt1rBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T17:36:04.600367Z"},"content_sha256":"e139f2794546eb1aed07302da963b87b7f3da3d24f17671f6882b0564b8eb0f9","schema_version":"1.0","event_id":"sha256:e139f2794546eb1aed07302da963b87b7f3da3d24f17671f6882b0564b8eb0f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:4AH5NNR7LR2BVCZTD55QLU6NO5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Qubit dephasing due to Quasiparticle Tunneling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.mes-hall","authors_text":"Michael Marthaler, Sebastian Zanker","submitted_at":"2014-10-31T12:05:53Z","abstract_excerpt":"We study dephasing of a superconducting qubit due to quasiparticle tunneling through a Josephson junction. While qubit decay due to tunneling processes is well understood within a golden rule approximation, pure dephasing due to BCS quasiparticles gives rise to a divergent golden rule rate. We calculate qubit dephasing due to quasiparticle tunneling beyond lowest order approximation in coupling between qubit and quasiparticles. Summing up a certain class of diagrams we show that qubit dephasing due to purely longitudinal coupling to quasiparticles leads to a dephasing $\\sim \\exp(-x(t))$ where "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.8715","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:04:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s66kTJCjY6pwgM1p7mcqDk54AaHU8WhOjCNzEPJ/t1EMHpYev7EaRQDDgYMQM/rWvYrSSHtb1j636SVHVGqKAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T17:36:04.600720Z"},"content_sha256":"87d9619b0e1e6b36b32f6ed679c451f71905292c1cd2c3a2620b1feeb8506cb8","schema_version":"1.0","event_id":"sha256:87d9619b0e1e6b36b32f6ed679c451f71905292c1cd2c3a2620b1feeb8506cb8"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/4AH5NNR7LR2BVCZTD55QLU6NO5/bundle.json","state_url":"https://pith.science/pith/4AH5NNR7LR2BVCZTD55QLU6NO5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/4AH5NNR7LR2BVCZTD55QLU6NO5/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":"2026-06-05T17:36:04Z","links":{"resolver":"https://pith.science/pith/4AH5NNR7LR2BVCZTD55QLU6NO5","bundle":"https://pith.science/pith/4AH5NNR7LR2BVCZTD55QLU6NO5/bundle.json","state":"https://pith.science/pith/4AH5NNR7LR2BVCZTD55QLU6NO5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/4AH5NNR7LR2BVCZTD55QLU6NO5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:4AH5NNR7LR2BVCZTD55QLU6NO5","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":"515f7210f7a3148f6cb373f51f5c03a269cfae82c2174671629ef9010cb1d60b","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-31T12:05:53Z","title_canon_sha256":"0b276d7db217c21f0f70a2b25f38e69cece64719a09b4812fb3c4285ffe15642"},"schema_version":"1.0","source":{"id":"1410.8715","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.8715","created_at":"2026-05-18T01:04:09Z"},{"alias_kind":"arxiv_version","alias_value":"1410.8715v2","created_at":"2026-05-18T01:04:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.8715","created_at":"2026-05-18T01:04:09Z"},{"alias_kind":"pith_short_12","alias_value":"4AH5NNR7LR2B","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_16","alias_value":"4AH5NNR7LR2BVCZT","created_at":"2026-05-18T12:28:14Z"},{"alias_kind":"pith_short_8","alias_value":"4AH5NNR7","created_at":"2026-05-18T12:28:14Z"}],"graph_snapshots":[{"event_id":"sha256:87d9619b0e1e6b36b32f6ed679c451f71905292c1cd2c3a2620b1feeb8506cb8","target":"graph","created_at":"2026-05-18T01:04:09Z","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 study dephasing of a superconducting qubit due to quasiparticle tunneling through a Josephson junction. While qubit decay due to tunneling processes is well understood within a golden rule approximation, pure dephasing due to BCS quasiparticles gives rise to a divergent golden rule rate. We calculate qubit dephasing due to quasiparticle tunneling beyond lowest order approximation in coupling between qubit and quasiparticles. Summing up a certain class of diagrams we show that qubit dephasing due to purely longitudinal coupling to quasiparticles leads to a dephasing $\\sim \\exp(-x(t))$ where ","authors_text":"Michael Marthaler, Sebastian Zanker","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-31T12:05:53Z","title":"Qubit dephasing due to Quasiparticle Tunneling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.8715","kind":"arxiv","version":2},"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:e139f2794546eb1aed07302da963b87b7f3da3d24f17671f6882b0564b8eb0f9","target":"record","created_at":"2026-05-18T01:04:09Z","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":"515f7210f7a3148f6cb373f51f5c03a269cfae82c2174671629ef9010cb1d60b","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-10-31T12:05:53Z","title_canon_sha256":"0b276d7db217c21f0f70a2b25f38e69cece64719a09b4812fb3c4285ffe15642"},"schema_version":"1.0","source":{"id":"1410.8715","kind":"arxiv","version":2}},"canonical_sha256":"e00fd6b63f5c741a8b331f7b05d3cd7760bb555d69ee8e600b9a40129fe4b72e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e00fd6b63f5c741a8b331f7b05d3cd7760bb555d69ee8e600b9a40129fe4b72e","first_computed_at":"2026-05-18T01:04:09.599181Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:04:09.599181Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"r9lAIoRkgI6yAVsv4HenSfEr1Q8WET7R2O/MO3vCJBFkPkZ2EixKpeKCIiYjgECM710CS8HoLtTNTPlMIIImAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:04:09.599917Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.8715","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e139f2794546eb1aed07302da963b87b7f3da3d24f17671f6882b0564b8eb0f9","sha256:87d9619b0e1e6b36b32f6ed679c451f71905292c1cd2c3a2620b1feeb8506cb8"],"state_sha256":"1db73f0fc6b40a62467690160c3a8264246fee89cfb7d28e525842ec1c4a3e40"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iVISvMxfx35jVKMayppaJKf7FK190M1lpHeEHNgaedWW1Qi07YdnMajn5F2FC2CAT1sZxvUIHifLUSGlmZ1NAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T17:36:04.603072Z","bundle_sha256":"19bb39e872adbc35d21b71072e11569cacf8c6439ed7a67117346afd7f98a83c"}}