🌐EnglishEnglishDeutschEspañolFrançaisItalianoPortuguêsTiếng ViệtTürkçeРусскийالعربيةفارسیไทย한국어中文日本語EntityQ1190143· pop 22· linked from 131 articlesangular momentum operatorquantum mechanical operator related to rotational symmetryAvailable in 21 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBanglaConnectionsuncertainty principleEntityspinEntityCategoriesAngular momentumQuantum operatorsRotational symmetry