{"paper":{"title":"LISA pathfinder appreciably constrains collapse models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Bassam Helou, Bram Slagmolen, David E. McClelland, Yanbei Chen","submitted_at":"2016-06-11T22:40:00Z","abstract_excerpt":"LISA Pathfinder's measurement of a relative acceleration noise between two free-falling test masses with a square root of the power spectral density of $5.2 \\pm 0.1 \\mbox{ fm s}^{-2}/\\sqrt{\\rm{Hz}}$ appreciably constrains collapse models. In particular, we bound the localization rate parameter, $\\lambda_{\\rm CSL}$, in the continuous spontaneous localization model (CSL) to be at most $\\left( 2.96 \\pm 0.12 \\right) \\times 10^{-8} \\mbox{ s}^{-1}$. Moreover, we bound the regularization scale, $\\sigma_{\\rm DP}$, used in the Diosi-Penrose (DP) model to be at least $40.1 \\pm 0.5 \\mbox{ fm}$. These bou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.03637","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}