{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"02e5d1f974de340c4dfaf888e1f7e7ac7ebc13c0a59664101677a2f369810d06","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["896bcaab2c58177c0c6eb3636160ce5e5d6dcf11e5bb40a3f1f76c2281c1229d","ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b"],"salt":"baa4d67be3cff99395cb9c13fe0b04cb07928765ed984a5cd2f90d9dfdf4b1b5","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"grav.analog-hawking.planck-scale-origin","kind":"phenomenon","literature_status":"contested","n":"2","parents":[],"plain":"Traced backwards in time, each Hawking particle came from a wave squeezed to a wavelength far below the Planck length (about $1.6 \\times 10^{-33}$ cm, the scale where gravity itself should behave quantum mechanically), where known physics fails. Which short-distance physics actually supplies these particles, and does the answer change the predicted temperature?","posed_since":"1991","precise":"In Lorentz-invariant quantum field theory on a collapse Schwarzschild geometry of mass M, an outgoing mode of frequency $\\omega \\sim T_H$ at time t after collapse had, near the horizon and as measured in a frame falling freely across it, frequency $\\sim \\omega \\exp(\\kappa t)$ with $\\kappa = c/(2 r_s)$, exceeding the Planck frequency after $t \\sim (2 r_s/c) \\ln(r_s/\\ell_P)$, $\\ell_P = (\\hbar G/c^{3})^{1/2} \\sim 1.6 \\times 10^{-33}\\,\\mathrm{cm}$. Identify the mechanism that supplies these modes (dispersion in a preferred frame, mode creation in a growing lattice, Lorentz-invariant nonlocality, or a full quantum gravity calculation) consistent with present bounds on Lorentz violation, and determine whether it yields $T_H = \\hbar c^{3}/(8 \\pi G M)$ with corrections suppressed by powers of $\\ell_P/r_s$. Formulating the question within a specified ultraviolet completion is part of the problem; an answer is the mechanism plus the leading correction to $T_H$.","problem_ref":"896bcaab2c58177c0c6eb3636160ce5e5d6dcf11e5bb40a3f1f76c2281c1229d","references":"","settled_by":"A derivation of the Hawking flux within a specified ultraviolet completion of gravity that shows explicitly where the outgoing modes come from and computes the first correction to $T_{\\mathrm{H}}$.","status_note":"Preferred-frame dispersive models reproduce $T_{\\mathrm{H}}$ with Planck-suppressed corrections, but no mechanism compatible with exact local Lorentz invariance is agreed as of 2026.","title":"Where do Hawking quanta of a real black hole originate?","topic_ref":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"59fdde9445744c808fdc12c546da36a0c920ba9065687847b60f36324b45fe61","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"a1b4f5b079a45b4f977c8ea7df65305e7f615fdb56fbfe617c4f1a5f9ad71dd7","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"mlL1nTpXOTHbiSms5qdGpPxAuUdc6OZJWAPcpGODgvd7WEZ2qo4NKfXoUjO-sErQzyssBBEDZgOS2Kcvxuo6DA"},"schema":"pubphys.envelope/1"},"record_hash":"59fdde9445744c808fdc12c546da36a0c920ba9065687847b60f36324b45fe61","leaf_index":3296}