{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:BTPQCSVHBT3XOSVEACXEL6AQDG","short_pith_number":"pith:BTPQCSVH","schema_version":"1.0","canonical_sha256":"0cdf014aa70cf7774aa400ae45f81019bf2be34649e564b8553f690e50a944de","source":{"kind":"arxiv","id":"1908.07648","version":2},"attestation_state":"computed","paper":{"title":"Hot exciton transport in WSe2 monolayers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph","physics.optics"],"primary_cat":"cond-mat.mes-hall","authors_text":"Darwin F. Cordovilla Leon, Parag B. Deotare, Sung Woon Jang, Zidong Li","submitted_at":"2019-08-20T23:53:39Z","abstract_excerpt":"We experimentally demonstrate hot exciton transport in h-BN encapsulated WSe2 monolayers via spatially and temporally resolved photoluminescence measurements at room temperature. We show that the nonlinear evolution of the mean squared displacement of the non-resonantly excited hot exciton gas is primarily due to the relaxation of its excess kinetic energy and is characterized by a density-dependent fast expansion that converges to a slower, constant rate expansion. We also observe saturation of the hot exciton gas' expansion rate at high excitation densities due to the balance between Auger-a"},"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":"1908.07648","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2019-08-20T23:53:39Z","cross_cats_sorted":["physics.app-ph","physics.optics"],"title_canon_sha256":"abd36d5ad5237c260cd00487b44231d31e7d35cee066edca9d89b4f069b0f8c5","abstract_canon_sha256":"b091b8bdf64c64ef1ca5e60cf4c6204f7fdac91492d6d2d7035d4fd51bfda20a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:25:14.357699Z","signature_b64":"1SkuTx47wsvJzpmWAWlzlH8JDkoMws/wpLeFgZ4NNCUUIn2rE7pY6Ce126dBlJ61Djll3iwDH/IN13GBEwCIDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0cdf014aa70cf7774aa400ae45f81019bf2be34649e564b8553f690e50a944de","last_reissued_at":"2026-07-05T00:25:14.357136Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:25:14.357136Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Hot exciton transport in WSe2 monolayers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.app-ph","physics.optics"],"primary_cat":"cond-mat.mes-hall","authors_text":"Darwin F. Cordovilla Leon, Parag B. Deotare, Sung Woon Jang, Zidong Li","submitted_at":"2019-08-20T23:53:39Z","abstract_excerpt":"We experimentally demonstrate hot exciton transport in h-BN encapsulated WSe2 monolayers via spatially and temporally resolved photoluminescence measurements at room temperature. We show that the nonlinear evolution of the mean squared displacement of the non-resonantly excited hot exciton gas is primarily due to the relaxation of its excess kinetic energy and is characterized by a density-dependent fast expansion that converges to a slower, constant rate expansion. We also observe saturation of the hot exciton gas' expansion rate at high excitation densities due to the balance between Auger-a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.07648","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1908.07648/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1908.07648","created_at":"2026-07-05T00:25:14.357198+00:00"},{"alias_kind":"arxiv_version","alias_value":"1908.07648v2","created_at":"2026-07-05T00:25:14.357198+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.07648","created_at":"2026-07-05T00:25:14.357198+00:00"},{"alias_kind":"pith_short_12","alias_value":"BTPQCSVHBT3X","created_at":"2026-07-05T00:25:14.357198+00:00"},{"alias_kind":"pith_short_16","alias_value":"BTPQCSVHBT3XOSVE","created_at":"2026-07-05T00:25:14.357198+00:00"},{"alias_kind":"pith_short_8","alias_value":"BTPQCSVH","created_at":"2026-07-05T00:25:14.357198+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/BTPQCSVHBT3XOSVEACXEL6AQDG","json":"https://pith.science/pith/BTPQCSVHBT3XOSVEACXEL6AQDG.json","graph_json":"https://pith.science/api/pith-number/BTPQCSVHBT3XOSVEACXEL6AQDG/graph.json","events_json":"https://pith.science/api/pith-number/BTPQCSVHBT3XOSVEACXEL6AQDG/events.json","paper":"https://pith.science/paper/BTPQCSVH"},"agent_actions":{"view_html":"https://pith.science/pith/BTPQCSVHBT3XOSVEACXEL6AQDG","download_json":"https://pith.science/pith/BTPQCSVHBT3XOSVEACXEL6AQDG.json","view_paper":"https://pith.science/paper/BTPQCSVH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1908.07648&json=true","fetch_graph":"https://pith.science/api/pith-number/BTPQCSVHBT3XOSVEACXEL6AQDG/graph.json","fetch_events":"https://pith.science/api/pith-number/BTPQCSVHBT3XOSVEACXEL6AQDG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/BTPQCSVHBT3XOSVEACXEL6AQDG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/BTPQCSVHBT3XOSVEACXEL6AQDG/action/storage_attestation","attest_author":"https://pith.science/pith/BTPQCSVHBT3XOSVEACXEL6AQDG/action/author_attestation","sign_citation":"https://pith.science/pith/BTPQCSVHBT3XOSVEACXEL6AQDG/action/citation_signature","submit_replication":"https://pith.science/pith/BTPQCSVHBT3XOSVEACXEL6AQDG/action/replication_record"}},"created_at":"2026-07-05T00:25:14.357198+00:00","updated_at":"2026-07-05T00:25:14.357198+00:00"}