{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:XXHIFOUCQBXJ7S7VLXVSMJ7TC2","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":"30004d815eb246409c43570156a97115e6dab628401e7654d5f3360646b0ab6c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2013-01-22T21:04:54Z","title_canon_sha256":"5ccb9dee9376f6fe1a4516da69905e42156d8992f41f7286be34b22d02426077"},"schema_version":"1.0","source":{"id":"1301.5329","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1301.5329","created_at":"2026-05-18T03:25:43Z"},{"alias_kind":"arxiv_version","alias_value":"1301.5329v3","created_at":"2026-05-18T03:25:43Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1301.5329","created_at":"2026-05-18T03:25:43Z"},{"alias_kind":"pith_short_12","alias_value":"XXHIFOUCQBXJ","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_16","alias_value":"XXHIFOUCQBXJ7S7V","created_at":"2026-05-18T12:28:06Z"},{"alias_kind":"pith_short_8","alias_value":"XXHIFOUC","created_at":"2026-05-18T12:28:06Z"}],"graph_snapshots":[{"event_id":"sha256:582d3e425caad4c8d6733c3759e3b8f0b9094c6ed033d98cb5c85d37b293981d","target":"graph","created_at":"2026-05-18T03:25:43Z","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":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We experimentally and numerically investigate the expansion of initially localized ultracold bosons in homogeneous one- and two-dimensional optical lattices. We find that both dimensionality and interaction strength crucially influence these non-equilibrium dynamics. While the atoms expand ballistically in all integrable limits, deviations from these limits dramatically suppress the expansion and lead to the appearance of almost bimodal cloud shapes, indicating diffusive dynamics in the center surrounded by ballistic wings. For strongly interacting bosons, we observe a dimensional crossover of","authors_text":"Fabian Heidrich-Meisner, Ian P. McCulloch, Immanuel Bloch, Jens Philipp Ronzheimer, Michael Schreiber, Sean S. Hodgman, Simon Braun, Stephan Langer, Ulrich Schneider","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2013-01-22T21:04:54Z","title":"Expansion dynamics of interacting bosons in homogeneous lattices in one and two dimensions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1301.5329","kind":"arxiv","version":3},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:60a41b52c16ee5d18706893594e8652b9b7fd76c4a2b3f50427a6f26d5528212","target":"record","created_at":"2026-05-18T03:25:43Z","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":"30004d815eb246409c43570156a97115e6dab628401e7654d5f3360646b0ab6c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2013-01-22T21:04:54Z","title_canon_sha256":"5ccb9dee9376f6fe1a4516da69905e42156d8992f41f7286be34b22d02426077"},"schema_version":"1.0","source":{"id":"1301.5329","kind":"arxiv","version":3}},"canonical_sha256":"bdce82ba82806e9fcbf55deb2627f316ba9b8fb4097e9d42d89aca07267cd586","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bdce82ba82806e9fcbf55deb2627f316ba9b8fb4097e9d42d89aca07267cd586","first_computed_at":"2026-05-18T03:25:43.367996Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:25:43.367996Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1Hti8UScbMlDCz8qRddZcSQAgVPmwf1ymzOYU1wwOR77e/9qON/fpsck5kc+to1vo++jwqrGlzoMf7EVj0JoCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T03:25:43.368880Z","signed_message":"canonical_sha256_bytes"},"source_id":"1301.5329","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60a41b52c16ee5d18706893594e8652b9b7fd76c4a2b3f50427a6f26d5528212","sha256:582d3e425caad4c8d6733c3759e3b8f0b9094c6ed033d98cb5c85d37b293981d"],"state_sha256":"a7438abf1a86c2ecc068b31f081cbcf239581fbd98185b1b90aca82b4a4df5b4"}