{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:V6LBJM4CR22C44SYFHMLBHBSDJ","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":"94fe899cea15bb532f1a76921d04414a039ed25f3e38750b58bea97bc46e204b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-14T08:53:56Z","title_canon_sha256":"c717f38c3d3c22b426a2156c92e45d7e4671dcbb08d245cdcc20d3c37c291bec"},"schema_version":"1.0","source":{"id":"2605.14582","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.14582","created_at":"2026-05-17T23:39:05Z"},{"alias_kind":"arxiv_version","alias_value":"2605.14582v1","created_at":"2026-05-17T23:39:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.14582","created_at":"2026-05-17T23:39:05Z"},{"alias_kind":"pith_short_12","alias_value":"V6LBJM4CR22C","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_16","alias_value":"V6LBJM4CR22C44SY","created_at":"2026-05-18T12:33:37Z"},{"alias_kind":"pith_short_8","alias_value":"V6LBJM4C","created_at":"2026-05-18T12:33:37Z"}],"graph_snapshots":[{"event_id":"sha256:b5d167e8b503bb6c596632b12f702a35a8c321a02390f31b919159f48d37e089","target":"graph","created_at":"2026-05-17T23:39:05Z","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":"two-photon parametric driving exponentially enhances the effective cavity-qubit coupling, which in turn gives rise to near-degenerate energy-level structures and highly entangled quantum states. This significantly enhances the charging power and enables rapid energy transfer from the charger to the battery."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"That the two-photon driving term can be realized in the superconducting circuit without introducing uncontrolled higher-order nonlinearities or excess noise that would invalidate the exponential enhancement and decoherence suppression claims."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"Two-photon parametric amplification in a superconducting circuit exponentially strengthens cavity-qubit coupling, enabling faster charging and decoherence-resistant energy storage in a quantum battery."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"Two-photon parametric driving exponentially strengthens cavity-qubit coupling in a superconducting circuit, producing entangled states that speed energy transfer into a quantum battery while suppressing decoherence."}],"snapshot_sha256":"6691150bf60757928d43977fa7a098110c2219915e0f3af6f0d2c047b94e4498"},"formal_canon":{"evidence_count":1,"snapshot_sha256":"e138ce2fd92f124c04457fc9a4f4734887a39b21821d2b616ab7062fbacfd645"},"paper":{"abstract_excerpt":"The parametric amplification enabled by two-photon driving constitutes a versatile platform for advanced quantum technologies. We present an optimized scheme for implementing quantum batteries (QBs) based on a superconducting circuit system, where a two-photon-driven LC resonator serves as the charger and an array of transmon qubits functions as the battery. Our results show that two-photon parametric driving exponentially enhances the effective cavity-qubit coupling, which in turn gives rise to near-degenerate energy-level structures and highly entangled quantum states. This significantly enh","authors_text":"Fang-Mei Yang, Fu-Quan Dou, Jun-Hong An","cross_cats":[],"headline":"Two-photon parametric driving exponentially strengthens cavity-qubit coupling in a superconducting circuit, producing entangled states that speed energy transfer into a quantum battery while suppressing decoherence.","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-14T08:53:56Z","title":"Quantum battery optimized by parametric amplification"},"references":{"count":103,"internal_anchors":0,"resolved_work":103,"sample":[{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":1,"title":"The Hamiltonian becomesH= eδc p2 a +x 2 a /2+δ q p2 c +x 2 c /2+2g exaxc. To analyze the stability of the system, the system is cast in matrix form H= 1 2 pa pc eδc 0 0δ q pa pc + 1 2 xa xc eδc 2ge 2g","work_id":"fec5b1f4-6f9f-4c89-b20d-f422cd3dafaf","year":null},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":2,"title":"R. Alicki and M. Fannes, Entanglement boost for ex- tractable work from ensembles of quantum batteries, Phys. Rev. E87, 042123 (2013)","work_id":"0e337c7d-3032-478e-a2cf-ebb86bbae555","year":2013},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":3,"title":"F. Campaioli, S. Gherardini, J. Q. Quach, M. Polini, and G. M. Andolina, Colloquium: Quantum batteries, Rev. Mod. Phys.96, 031001 (2024)","work_id":"3bfe0745-93d9-4e74-8585-19df221105ef","year":2024},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":4,"title":"D. Ferraro, F. Cavaliere, M. G. Genoni, G. Benenti, and M. Sassetti, Opportunities and challenges of quantum batteries, Nat. Rev. Phys.8, 115 (2026)","work_id":"3a5ae5b4-6530-475e-9534-f3aa4da3b811","year":2026},{"cited_arxiv_id":"","doi":"","is_internal_anchor":false,"ref_index":5,"title":"G. M. Andolina, M. Keck, A. Mari, V. Giovannetti, and M. Polini, Quantum versus classical many-body batter- ies, Phys. Rev. B99, 205437 (2019)","work_id":"e2babce1-5e80-4ef1-9560-cdd20c885b47","year":2019}],"snapshot_sha256":"bb78733e7b2f774b858c443a75f2ff9192a91e22ec43068fbd6d95ca8680435a"},"source":{"id":"2605.14582","kind":"arxiv","version":1},"verdict":{"created_at":"2026-05-15T01:29:35.349351Z","id":"d9fbe61a-b2d1-4b34-b9a5-76c277ac2da0","model_set":{"reader":"grok-4.3"},"one_line_summary":"Two-photon parametric amplification in a superconducting circuit exponentially strengthens cavity-qubit coupling, enabling faster charging and decoherence-resistant energy storage in a quantum battery.","pipeline_version":"pith-pipeline@v0.9.0","pith_extraction_headline":"Two-photon parametric driving exponentially strengthens cavity-qubit coupling in a superconducting circuit, producing entangled states that speed energy transfer into a quantum battery while suppressing decoherence.","strongest_claim":"two-photon parametric driving exponentially enhances the effective cavity-qubit coupling, which in turn gives rise to near-degenerate energy-level structures and highly entangled quantum states. This significantly enhances the charging power and enables rapid energy transfer from the charger to the battery.","weakest_assumption":"That the two-photon driving term can be realized in the superconducting circuit without introducing uncontrolled higher-order nonlinearities or excess noise that would invalidate the exponential enhancement and decoherence suppression claims."}},"verdict_id":"d9fbe61a-b2d1-4b34-b9a5-76c277ac2da0"}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:958206acaba85e8d9983b6712b2fc31e946e10961d91df64c06e99083f69775a","target":"record","created_at":"2026-05-17T23:39:05Z","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":"94fe899cea15bb532f1a76921d04414a039ed25f3e38750b58bea97bc46e204b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-14T08:53:56Z","title_canon_sha256":"c717f38c3d3c22b426a2156c92e45d7e4671dcbb08d245cdcc20d3c37c291bec"},"schema_version":"1.0","source":{"id":"2605.14582","kind":"arxiv","version":1}},"canonical_sha256":"af9614b3828eb42e725829d8b09c321a4bfb0da23e91ee2bf800396f6ba55664","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"af9614b3828eb42e725829d8b09c321a4bfb0da23e91ee2bf800396f6ba55664","first_computed_at":"2026-05-17T23:39:05.352469Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:39:05.352469Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QtcuRCm1OygGQSznshTjZHddvDhrnIK6BYdbzcznx/Prlsu/Yf1yCIr0VJqWo48UxRRtjm50eGqv9vi9rDGGAw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:39:05.353278Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.14582","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:958206acaba85e8d9983b6712b2fc31e946e10961d91df64c06e99083f69775a","sha256:b5d167e8b503bb6c596632b12f702a35a8c321a02390f31b919159f48d37e089"],"state_sha256":"35b0317c5060e9923a17948211160ad63b076c09c97cd6b796ac2040e2ad34d6"}