{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:QWTIG3DKRAYIS3FKVPJIQQJL45","short_pith_number":"pith:QWTIG3DK","schema_version":"1.0","canonical_sha256":"85a6836c6a8830896caaabd288412be7611e7e8d4f72846125eff5c5b0442666","source":{"kind":"arxiv","id":"1505.05566","version":1},"attestation_state":"computed","paper":{"title":"Enhancing phonon flow through 1D interfaces by Impedance Matching","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Avik W. Ghosh, Carlos A. Polanco","submitted_at":"2015-05-21T01:03:21Z","abstract_excerpt":"We extend concepts from microwave engineering to thermal interfaces and explore the principles of impedance matching in 1D. The extension is based on the generalization of acoustic impedance to non linear dispersions using the contact broadening matrix $\\Gamma(\\omega)$, extracted from the phonon self energy. For a single junction, we find that for coherent and incoherent phonons the optimal thermal conductance occurs when the matching $\\Gamma(\\omega)$ equals the Geometric Mean (GM) of the contact broadenings. This criteria favors the transmission of both low and high frequency phonons by requi"},"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":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1505.05566","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-05-21T01:03:21Z","cross_cats_sorted":[],"title_canon_sha256":"fa3b2f5e35492f5ffccec9d62efb43ef6449c28516a63103f748901d98c4bb55","abstract_canon_sha256":"d6d985a0bf784b9e0b959b23a24c48330aaa62f69b7d4d4ce875ec1d9970b041"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:54.180058Z","signature_b64":"zsxT1GfLhoer6eG6YT9xXP2DTIPP1Y8nzeknoKtY5b+kLHf3c0F6AZ+Fk/8lA44UpwtrBHchT/rlzs9GvI8DCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85a6836c6a8830896caaabd288412be7611e7e8d4f72846125eff5c5b0442666","last_reissued_at":"2026-05-18T02:03:54.179498Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:54.179498Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Enhancing phonon flow through 1D interfaces by Impedance Matching","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"Avik W. Ghosh, Carlos A. Polanco","submitted_at":"2015-05-21T01:03:21Z","abstract_excerpt":"We extend concepts from microwave engineering to thermal interfaces and explore the principles of impedance matching in 1D. The extension is based on the generalization of acoustic impedance to non linear dispersions using the contact broadening matrix $\\Gamma(\\omega)$, extracted from the phonon self energy. For a single junction, we find that for coherent and incoherent phonons the optimal thermal conductance occurs when the matching $\\Gamma(\\omega)$ equals the Geometric Mean (GM) of the contact broadenings. This criteria favors the transmission of both low and high frequency phonons by requi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.05566","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1505.05566","created_at":"2026-05-18T02:03:54.179611+00:00"},{"alias_kind":"arxiv_version","alias_value":"1505.05566v1","created_at":"2026-05-18T02:03:54.179611+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.05566","created_at":"2026-05-18T02:03:54.179611+00:00"},{"alias_kind":"pith_short_12","alias_value":"QWTIG3DKRAYI","created_at":"2026-05-18T12:29:39.896362+00:00"},{"alias_kind":"pith_short_16","alias_value":"QWTIG3DKRAYIS3FK","created_at":"2026-05-18T12:29:39.896362+00:00"},{"alias_kind":"pith_short_8","alias_value":"QWTIG3DK","created_at":"2026-05-18T12:29:39.896362+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QWTIG3DKRAYIS3FKVPJIQQJL45","json":"https://pith.science/pith/QWTIG3DKRAYIS3FKVPJIQQJL45.json","graph_json":"https://pith.science/api/pith-number/QWTIG3DKRAYIS3FKVPJIQQJL45/graph.json","events_json":"https://pith.science/api/pith-number/QWTIG3DKRAYIS3FKVPJIQQJL45/events.json","paper":"https://pith.science/paper/QWTIG3DK"},"agent_actions":{"view_html":"https://pith.science/pith/QWTIG3DKRAYIS3FKVPJIQQJL45","download_json":"https://pith.science/pith/QWTIG3DKRAYIS3FKVPJIQQJL45.json","view_paper":"https://pith.science/paper/QWTIG3DK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1505.05566&json=true","fetch_graph":"https://pith.science/api/pith-number/QWTIG3DKRAYIS3FKVPJIQQJL45/graph.json","fetch_events":"https://pith.science/api/pith-number/QWTIG3DKRAYIS3FKVPJIQQJL45/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QWTIG3DKRAYIS3FKVPJIQQJL45/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QWTIG3DKRAYIS3FKVPJIQQJL45/action/storage_attestation","attest_author":"https://pith.science/pith/QWTIG3DKRAYIS3FKVPJIQQJL45/action/author_attestation","sign_citation":"https://pith.science/pith/QWTIG3DKRAYIS3FKVPJIQQJL45/action/citation_signature","submit_replication":"https://pith.science/pith/QWTIG3DKRAYIS3FKVPJIQQJL45/action/replication_record"}},"created_at":"2026-05-18T02:03:54.179611+00:00","updated_at":"2026-05-18T02:03:54.179611+00:00"}