{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:HL4XHPREA5YTOPNX3RG3AFGTR2","short_pith_number":"pith:HL4XHPRE","canonical_record":{"source":{"id":"2604.17317","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-04-19T08:16:37Z","cross_cats_sorted":[],"title_canon_sha256":"96db0f3d2f8197cc913ec7806fca04a722880cc74ffbe1e54a32a0f08c2b28c0","abstract_canon_sha256":"48989426f5bbc0f2671bd28198e05339bbb0c4c466541ebd2c818cda558be401"},"schema_version":"1.0"},"canonical_sha256":"3af973be240771373db7dc4db014d38e8580d5c769be36e1b66fac5a631b7479","source":{"kind":"arxiv","id":"2604.17317","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2604.17317","created_at":"2026-05-21T01:04:25Z"},{"alias_kind":"arxiv_version","alias_value":"2604.17317v2","created_at":"2026-05-21T01:04:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.17317","created_at":"2026-05-21T01:04:25Z"},{"alias_kind":"pith_short_12","alias_value":"HL4XHPREA5YT","created_at":"2026-05-21T01:04:25Z"},{"alias_kind":"pith_short_16","alias_value":"HL4XHPREA5YTOPNX","created_at":"2026-05-21T01:04:25Z"},{"alias_kind":"pith_short_8","alias_value":"HL4XHPRE","created_at":"2026-05-21T01:04:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:HL4XHPREA5YTOPNX3RG3AFGTR2","target":"record","payload":{"canonical_record":{"source":{"id":"2604.17317","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-04-19T08:16:37Z","cross_cats_sorted":[],"title_canon_sha256":"96db0f3d2f8197cc913ec7806fca04a722880cc74ffbe1e54a32a0f08c2b28c0","abstract_canon_sha256":"48989426f5bbc0f2671bd28198e05339bbb0c4c466541ebd2c818cda558be401"},"schema_version":"1.0"},"canonical_sha256":"3af973be240771373db7dc4db014d38e8580d5c769be36e1b66fac5a631b7479","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-21T01:04:25.925884Z","signature_b64":"A4BeJ8sZRr8ilMKFk1iw+SETBOcRHOGAVZ897z4ffYxQX/INa8DVQR0yvLal5zsVKUDiof5CVGhhROrU6SoXDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3af973be240771373db7dc4db014d38e8580d5c769be36e1b66fac5a631b7479","last_reissued_at":"2026-05-21T01:04:25.924971Z","signature_status":"signed_v1","first_computed_at":"2026-05-21T01:04:25.924971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2604.17317","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":"2026-05-21T01:04:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CS9SEPbctgTMcxRx8HbmBeKHkJdMcGaxuWI8Z7JxEzHVgmv6gWJ9PPd/leTx9WIuPUBMnhfD5ghxHpSAtdJPDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:50:30.879518Z"},"content_sha256":"e62aeafbe9d07d01cf14ba32928e589ce7f6477dd9665c55f47a94d1e906e655","schema_version":"1.0","event_id":"sha256:e62aeafbe9d07d01cf14ba32928e589ce7f6477dd9665c55f47a94d1e906e655"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:HL4XHPREA5YTOPNX3RG3AFGTR2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Unified adiabatic and diabatic excited-state description via the ensemble-variational quantum eigensolver","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"A parameterized basis transformation generalizes the ensemble-variational quantum eigensolver to three or more coupled electronic states.","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Benjamin Lasorne, Bruno Senjean, Christophe Soule","submitted_at":"2026-04-19T08:16:37Z","abstract_excerpt":"Within the present noisy intermediate-scale quantum-computing era, hybrid quantum-classical-processor algorithms have emerged as promising avenues for tackling electronic-structure eigenproblems. Among them, the so-called ensemble-variational quantum eigensolver has been designed to treat ground and excited states on an equal footing and proven effective in capturing features such as conical intersections and avoided crossings between two electronic states, as we recently demonstrated for formaldimine. We also showed on that example how the underlying ensemble-variational principle was prone t"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The aim of the present paper is to show how and under what conditions this can be generalized to models that involve three coupled electronic states or more. Our approach relies on designing a parameterized basis transformation that can directly be implemented on a quantum computer for further post-treatment.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That an algebraic optimization strategy for the parameters of the basis transformation will reliably produce the target eigenstates and optimally diabatic states for systems with three or more coupled states without prohibitive scaling or convergence issues on quantum hardware.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"The ensemble-variational quantum eigensolver is generalized to three or more coupled states via a quantum-implementable parameterized basis transformation, yielding both adiabatic eigenstates and optimally diabatic states, demonstrated on the first three states of H4+.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A parameterized basis transformation generalizes the ensemble-variational quantum eigensolver to three or more coupled electronic states.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"c7f775e69d232b8498d5faf7dd6084ada4c7f32ab13c681f5d10b51596e90e62"},"source":{"id":"2604.17317","kind":"arxiv","version":2},"verdict":{"id":"34293b62-49e2-4ed7-9a15-07511e979d09","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-10T06:17:42.919350Z","strongest_claim":"The aim of the present paper is to show how and under what conditions this can be generalized to models that involve three coupled electronic states or more. Our approach relies on designing a parameterized basis transformation that can directly be implemented on a quantum computer for further post-treatment.","one_line_summary":"The ensemble-variational quantum eigensolver is generalized to three or more coupled states via a quantum-implementable parameterized basis transformation, yielding both adiabatic eigenstates and optimally diabatic states, demonstrated on the first three states of H4+.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That an algebraic optimization strategy for the parameters of the basis transformation will reliably produce the target eigenstates and optimally diabatic states for systems with three or more coupled states without prohibitive scaling or convergence issues on quantum hardware.","pith_extraction_headline":"A parameterized basis transformation generalizes the ensemble-variational quantum eigensolver to three or more coupled electronic states."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2604.17317/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"34293b62-49e2-4ed7-9a15-07511e979d09"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-21T01:04:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GpCdHh1o23VeYGrEDSEf4BJCuL1QmpxIN2wsuMjH2HWKK8x2HDwts3/lPZipPd8A9YgTfBrwAic5FjB+Ca8CDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T11:50:30.880421Z"},"content_sha256":"0dba418ce9c47687653e8886d34384bec346b69283138a912830a5eb43d9cff3","schema_version":"1.0","event_id":"sha256:0dba418ce9c47687653e8886d34384bec346b69283138a912830a5eb43d9cff3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HL4XHPREA5YTOPNX3RG3AFGTR2/bundle.json","state_url":"https://pith.science/pith/HL4XHPREA5YTOPNX3RG3AFGTR2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HL4XHPREA5YTOPNX3RG3AFGTR2/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":"2026-05-26T11:50:30Z","links":{"resolver":"https://pith.science/pith/HL4XHPREA5YTOPNX3RG3AFGTR2","bundle":"https://pith.science/pith/HL4XHPREA5YTOPNX3RG3AFGTR2/bundle.json","state":"https://pith.science/pith/HL4XHPREA5YTOPNX3RG3AFGTR2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HL4XHPREA5YTOPNX3RG3AFGTR2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:HL4XHPREA5YTOPNX3RG3AFGTR2","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":"48989426f5bbc0f2671bd28198e05339bbb0c4c466541ebd2c818cda558be401","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-04-19T08:16:37Z","title_canon_sha256":"96db0f3d2f8197cc913ec7806fca04a722880cc74ffbe1e54a32a0f08c2b28c0"},"schema_version":"1.0","source":{"id":"2604.17317","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2604.17317","created_at":"2026-05-21T01:04:25Z"},{"alias_kind":"arxiv_version","alias_value":"2604.17317v2","created_at":"2026-05-21T01:04:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2604.17317","created_at":"2026-05-21T01:04:25Z"},{"alias_kind":"pith_short_12","alias_value":"HL4XHPREA5YT","created_at":"2026-05-21T01:04:25Z"},{"alias_kind":"pith_short_16","alias_value":"HL4XHPREA5YTOPNX","created_at":"2026-05-21T01:04:25Z"},{"alias_kind":"pith_short_8","alias_value":"HL4XHPRE","created_at":"2026-05-21T01:04:25Z"}],"graph_snapshots":[{"event_id":"sha256:0dba418ce9c47687653e8886d34384bec346b69283138a912830a5eb43d9cff3","target":"graph","created_at":"2026-05-21T01:04:25Z","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":4,"items":[{"attestation":"unclaimed","claim_id":"C1","kind":"strongest_claim","source":"verdict.strongest_claim","status":"machine_extracted","text":"The aim of the present paper is to show how and under what conditions this can be generalized to models that involve three coupled electronic states or more. Our approach relies on designing a parameterized basis transformation that can directly be implemented on a quantum computer for further post-treatment."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"That an algebraic optimization strategy for the parameters of the basis transformation will reliably produce the target eigenstates and optimally diabatic states for systems with three or more coupled states without prohibitive scaling or convergence issues on quantum hardware."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"The ensemble-variational quantum eigensolver is generalized to three or more coupled states via a quantum-implementable parameterized basis transformation, yielding both adiabatic eigenstates and optimally diabatic states, demonstrated on the first three states of H4+."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"A parameterized basis transformation generalizes the ensemble-variational quantum eigensolver to three or more coupled electronic states."}],"snapshot_sha256":"c7f775e69d232b8498d5faf7dd6084ada4c7f32ab13c681f5d10b51596e90e62"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2604.17317/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Within the present noisy intermediate-scale quantum-computing era, hybrid quantum-classical-processor algorithms have emerged as promising avenues for tackling electronic-structure eigenproblems. Among them, the so-called ensemble-variational quantum eigensolver has been designed to treat ground and excited states on an equal footing and proven effective in capturing features such as conical intersections and avoided crossings between two electronic states, as we recently demonstrated for formaldimine. We also showed on that example how the underlying ensemble-variational principle was prone t","authors_text":"Benjamin Lasorne, Bruno Senjean, Christophe Soule","cross_cats":[],"headline":"A parameterized basis transformation generalizes the ensemble-variational quantum eigensolver to three or more coupled electronic states.","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-04-19T08:16:37Z","title":"Unified adiabatic and diabatic excited-state description via the ensemble-variational quantum eigensolver"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2604.17317","kind":"arxiv","version":2},"verdict":{"created_at":"2026-05-10T06:17:42.919350Z","id":"34293b62-49e2-4ed7-9a15-07511e979d09","model_set":{"reader":"grok-4.3"},"one_line_summary":"The ensemble-variational quantum eigensolver is generalized to three or more coupled states via a quantum-implementable parameterized basis transformation, yielding both adiabatic eigenstates and optimally diabatic states, demonstrated on the first three states of H4+.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"A parameterized basis transformation generalizes the ensemble-variational quantum eigensolver to three or more coupled electronic states.","strongest_claim":"The aim of the present paper is to show how and under what conditions this can be generalized to models that involve three coupled electronic states or more. Our approach relies on designing a parameterized basis transformation that can directly be implemented on a quantum computer for further post-treatment.","weakest_assumption":"That an algebraic optimization strategy for the parameters of the basis transformation will reliably produce the target eigenstates and optimally diabatic states for systems with three or more coupled states without prohibitive scaling or convergence issues on quantum hardware."}},"verdict_id":"34293b62-49e2-4ed7-9a15-07511e979d09"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:e62aeafbe9d07d01cf14ba32928e589ce7f6477dd9665c55f47a94d1e906e655","target":"record","created_at":"2026-05-21T01:04:25Z","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":"48989426f5bbc0f2671bd28198e05339bbb0c4c466541ebd2c818cda558be401","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-04-19T08:16:37Z","title_canon_sha256":"96db0f3d2f8197cc913ec7806fca04a722880cc74ffbe1e54a32a0f08c2b28c0"},"schema_version":"1.0","source":{"id":"2604.17317","kind":"arxiv","version":2}},"canonical_sha256":"3af973be240771373db7dc4db014d38e8580d5c769be36e1b66fac5a631b7479","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3af973be240771373db7dc4db014d38e8580d5c769be36e1b66fac5a631b7479","first_computed_at":"2026-05-21T01:04:25.924971Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-21T01:04:25.924971Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A4BeJ8sZRr8ilMKFk1iw+SETBOcRHOGAVZ897z4ffYxQX/INa8DVQR0yvLal5zsVKUDiof5CVGhhROrU6SoXDA==","signature_status":"signed_v1","signed_at":"2026-05-21T01:04:25.925884Z","signed_message":"canonical_sha256_bytes"},"source_id":"2604.17317","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e62aeafbe9d07d01cf14ba32928e589ce7f6477dd9665c55f47a94d1e906e655","sha256:0dba418ce9c47687653e8886d34384bec346b69283138a912830a5eb43d9cff3"],"state_sha256":"979c83522085de92192489e52520102913e9d6ef1ebd903965034fe5fd58b579"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dfyf9goRcfn+xE040Cm5zssH1pHpFlKQHWLbjZEYbpeMAJXXMKCLXy3uK2rAYrcHyDcBvPMK/PKwUeHeHrSMAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T11:50:30.884224Z","bundle_sha256":"0eb515346660c521a869fda76adead9e7c3f900958d528732de6594403cd1acf"}}