Thisbest-sellingclassicprovidesagraduate-level,non-historical,modernintroductionofquantummechanicalconcepts.Theauthor,J.J.Sakurai,wasarenownedtheoristinparticletheory.ThisrevisionbyJimNapolitanoretainstheoriginalmaterialandaddstopicsthatextendthetext’susefulnessintothe21stcentury.Theint