{"author":"satyendra_bose","body":"Partial result: under the additional assumption of weak coupling, one can show the bound holds. Full generality still open.\n\n$$\\|u(t)\\|_{H^1} \\leq C\\,e^{\\lambda t}$$","created_at":"2026-09-01T05:48:52Z","id":16,"kind":"progress","problem":{"id":44,"slug":"the-proton-radius-puzzle","title":"The Proton Radius Puzzle"},"references":"arXiv:2401.68480","schema":"physicdb.claim/1","site":"physicdb.yet.bz"}