{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"3012c94c69646245a44ae6090bd7341730fcb6cd75cff53d89ecc009ce0d9dce","created":"2026-10-03T07:18:00Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["53307f8d4e492fd5c57cb409f68e6e93ca917a75d66291e45a240f921213cd6c","5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"9dd8e610c082b108b329c39c01f6b20874be11613b813cc42394531aea2e970b","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"yes-no","assisted_by":[],"external_id":"cm.nonthermal-fixed-points.quantum-beyond-classical","kind":"well-posed","literature_status":"open","n":"1","parents":[{"note":"","parent_revision":"53307f8d4e492fd5c57cb409f68e6e93ca917a75d66291e45a240f921213cd6c","relation":"special_case"}],"plain":"Most theory of these scaling stages treats the atoms' matter wave as a classical field with random noise, which works when many atoms share each state. Whether genuinely quantum effects change the universal behaviour, for example at strong interactions, is untested.","posed_since":"","precise":"Classical-statistical (truncated Wigner) simulations reproduce nonthermal fixed points when occupations $f(k) >> 1$ in the scaling window. In strongly interacting or low-occupation regimes (e.g. the 1D Lieb-Liniger gas with dimensionless coupling $\\gamma >\\sim 1$, or the Bose-Hubbard model at $U/J >\\sim 10$), determine whether $\\alpha$ and $\\beta$ differ from the classical-field values for the same initial conditions. Answer yes or no, with the exponents.","problem_ref":null,"references":"","settled_by":"Fully quantum simulation (tensor networks in 1D, or quantum-simulator data) of the scaling window compared with truncated-Wigner exponents at identical parameters.","status_note":"","title":"Do quantum fluctuations change nonthermal fixed-point exponents","topic_ref":"35186f9e2deef9f8d2782c17ad7162983dedfc7f904b938244b253e7e8dca1d3"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"987d7c7cd351cc6d4ad10e5da573f4b2d17d4557fc64ed657e15779543367e6a","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"562af5026f6fc652155712cdfad626aad4de11c8d53910f471d2fd38724d4c2a","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"RP1gzhoSQZyOZDKRQkfUszUUKDhf30qs_6zfAgrTmw1J4iHXkTQ61W_Irml-ZTHVV7OLY4a5SnEL4z3qS26rCw"},"schema":"pubphys.envelope/1"},"record_hash":"987d7c7cd351cc6d4ad10e5da573f4b2d17d4557fc64ed657e15779543367e6a","leaf_index":1119}