{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"f1e299f31e04ccdda5d3556a8c5309f2dcda4936615adfce59ceaaefed0648df","created":"2026-10-03T07:17:53Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"f83a3ee065b34b0c13dc6aa7e896d742fd6a07faa45d5fb224b164ed6633f74e","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"yes-no","assisted_by":[],"external_id":"amo.electric-dipole-moments.electron-edm","kind":"well-posed","literature_status":"open","n":"1","parents":[],"plain":"No electron dipole has been seen down to 4 parts in $10^{30}$ of an electron charge times a centimeter. Next-generation molecule experiments aim to look ten times deeper, where many theories with new heavy particles predict a signal.","posed_since":"","precise":"Current bound $\\mid d_{e}\\mid < 4.1e-30\\,e\\,\\mathrm{cm}$ (90% CL, JILA HfF+, 2023), with the Standard Model contribution many orders smaller. Determine whether $d_{e}$ (or the equivalent electron-nucleon coupling $C_{\\mathrm{S}}$) is nonzero at the $1e-31\\,e\\,\\mathrm{cm}$ level using polar molecules (ThO, ThF+, YbOH, BaF or others).","problem_ref":null,"references":"","settled_by":"A molecular EDM measurement with statistical and systematic uncertainty near 1e-31 e cm, confirmed in a second species.","status_note":"JILA's third-generation ThF+ experiment and ACME III (ThO) report progress toward roughly 1e-31 e cm sensitivity as of 2026.","title":"Is the electron EDM nonzero above 1e-31 e cm?","topic_ref":"c246b9f50df025b5d8ac429d18d9f7456b8697e6ae051e6f2f11e3e2464e02b9"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"060f9b067dc7d96684d30cb0773f7e3f032456842fe1ad897eeab1b402e2a466","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"5b262b998a1a2415e12646ebafb22d14522e2da47fe4b28b91e973d713d1e5a9","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"vPIl-f7livX_kZTavD8cXdEm24sHVFFZDmjB8dqsFOF-oVfnZraiVYGFxs6pYJJrkdctZgpSJehcSq6ixGPfCQ"},"schema":"pubphys.envelope/1"},"record_hash":"060f9b067dc7d96684d30cb0773f7e3f032456842fe1ad897eeab1b402e2a466","leaf_index":406}