{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"7a79b80f98e4e01352e55193a0c2134b520cf358eabaa10d83322b6158bdba44","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["987d7c7cd351cc6d4ad10e5da573f4b2d17d4557fc64ed657e15779543367e6a","ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b"],"salt":"6662407cbd532ac1072898ad5fa0d3fdb6f7f27ef452d47c436662623dedbf74","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":"2","parents":[],"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":"987d7c7cd351cc6d4ad10e5da573f4b2d17d4557fc64ed657e15779543367e6a","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":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"efb0375025c3bbb8657aa13f0e6bd1c6eb20637c5c5fefa21160a429a3532710","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"21b9a493efba919d9a27ce3167f50e5f03cd0eccc74fc683164dd3983fc3402c","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"H8HDZaiQGfB_PcXBmMnj8YQXMcmQoUwaE-0QfGCiZtMkbRyv-S4JY2zf40mHE-i0teHJf7o2b4ajeqbrLurLBA"},"schema":"pubphys.envelope/1"},"record_hash":"efb0375025c3bbb8657aa13f0e6bd1c6eb20637c5c5fefa21160a429a3532710","leaf_index":2980}