{"id":"S85100182","label":"Perturbation (Quantum dynamics)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85100182","normalized_label":"perturbation (quantum dynamics)","broader":["http://id.loc.gov/authorities/subjects/sh85100181","http://id.loc.gov/authorities/subjects/sh85109469"],"aliases":["Perturbation theory, Quantum mechanical"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85100182","provider":"lcsh","revision":"c8c749262782c5e3","taxonomy_revision":"f050b5d4780b1289","title":"Perturbation (Quantum dynamics)","url":"/topics/S85100182","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"867154309379670592","address_version":"morton4x16-v1","coordinates":[0,20,18970,22528],"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}