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However, optimizing charging\n  strategies and understanding the interplay between dissipation and quantum\n  coherence remain open challenges. Here, we investigate steady-state charging\n  in an open quantum battery and demonstrate that the charging timescale depends\n  on the spectral gap of the Liouvillian operator governing dissipative dynamics.\n  As a minimal example, we examine a three-level quantum battery realized in\n  a single trapped ${}^{40}\\mathrm{Ca}^{+}$ ion, "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":true,"formal_links_present":false},"canonical_record":{"source":{"id":"2605.12867","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"quant-ph","submitted_at":"2026-05-13T01:23:34Z","cross_cats_sorted":[],"title_canon_sha256":"8e0bd0a3f8ffcd6dcfb0817bb8c66cf98a74abdceea00b7d05b65ff391e63f73","abstract_canon_sha256":"00afb67658a1adef3f09c8aaa3b755377be7c736a9b655539642e31ed5727fa4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:09:11.438927Z","signature_b64":"oEDG63TRFG3Ujz0WW/huY94XVSyDJeSEUKIfk/Odxw08wy9eKDuL0sPrmPppZwefa7SQaaFu9gtLMgsRaaOuAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7183235f6ed5b8abe988ceb2799dcc0950a5bb8f80aa3fb165254d3279bf5510","last_reissued_at":"2026-05-18T03:09:11.438251Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:09:11.438251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Liouvillian spectral control for fast charging of quantum batteries","license":"http://creativecommons.org/licenses/by/4.0/","headline":"Tuning an open quantum battery to a Liouvillian exceptional point enlarges the spectral gap and accelerates charging to steady state.","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Chuan-Cun Shu, Hang Zhou, Jia-Wei Huang","submitted_at":"2026-05-13T01:23:34Z","abstract_excerpt":"Quantum batteries, which use quantum systems to store and deliver energy,\n  are promising for next-generation energy storage. However, optimizing charging\n  strategies and understanding the interplay between dissipation and quantum\n  coherence remain open challenges. Here, we investigate steady-state charging\n  in an open quantum battery and demonstrate that the charging timescale depends\n  on the spectral gap of the Liouvillian operator governing dissipative dynamics.\n  As a minimal example, we examine a three-level quantum battery realized in\n  a single trapped ${}^{40}\\mathrm{Ca}^{+}$ ion, "},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"By adjusting experimentally accessible parameters, such as reservoir occupation and coherent coupling strength, the non-Hermitian Liouvillian spectrum can approach an exceptional point. This increases the spectral gap and accelerates the approach to steady state. 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This increases the spectral gap and accelerates the approach to steady state. As a result, this mechanism significantly enhances asymptotic charging power without relying on many-body collectivity or steady coherence.","one_line_summary":"Tuning parameters in a three-level open quantum battery near a Liouvillian exceptional point widens the spectral gap and speeds charging to the steady state without needing collective effects or persistent coherence.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That the long-term dynamics remain confined to a low-dimensional manifold of slow Liouvillian modes and that tuning reservoir occupation and coupling strength to the exceptional point does not introduce additional decoherence channels or invalidate the Markovian description.","pith_extraction_headline":"Tuning an open quantum battery to a Liouvillian exceptional point enlarges the spectral gap and accelerates charging to steady state."},"references":{"count":75,"sample":[{"doi":"","year":null,"title":"impedance-matching","work_id":"d1be9a26-608e-4b42-88a1-2b9c8cf57be4","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2013,"title":"R. 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