Acta Physica SinicaFOUR KINDS OF RAISING AND LOWERING-OPERATORS OF A TWO-DIMENSIONAL-ISOTROPIC HARMONIC OSCILLATORYufeng Liu, ZENG JIN-YAN, 北京大学物理系Published Jan 1, 1997• 1 citationPublisherAbstractUsing the factorization method,four kinds of raising and lowering operators of a two dimensional isotropic harmonic oscillator were derived, and the corresponding selection rules and conserved quantum numbers were discussed.DOI10.7498/aps.46.423