{"id":"S85141738","label":"Vacuum polarization","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85141738","normalized_label":"vacuum polarization","broader":["http://id.loc.gov/authorities/subjects/sh85042135","http://id.loc.gov/authorities/subjects/sh85042184","http://id.loc.gov/authorities/subjects/sh85042423","http://id.loc.gov/authorities/subjects/sh85104155","http://id.loc.gov/authorities/subjects/sh85105392"],"aliases":[],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85141738","provider":"lcsh","revision":"64ad2443bb195b89","taxonomy_revision":"f050b5d4780b1289","title":"Vacuum polarization","url":"/topics/S85141738","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9547846715382563396","address_version":"morton4x16-v1","coordinates":[0,20,19619,43008],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}