文档介绍:,CaliforniaAWiley-IntersciencePublicationJohn Wiley&SonsNew York ?Chichester?Brisbane? Toronto ?SingaporeANOTETOTHEREADERThis book has beenelectronicallyreproduced fromdigitalinformationstoredat John Wiley&Sons, arepleasedthat the useofthis new technologywillenableus to keep worksofenduring scholarlyvalueinprintas long as there is a reasonable demandfor them. The contentofthisbook is identical ?1988by John Wiley&Sons, rights reserved. Publishedsimultaneouslyin translationof anypart of this workbeyondthat permittedby Section 107or 108of the1976UnitedStates CopyrightAct withoutthe permissionof the copyrightowneris unlawful. Requestsforpermissionor further informationshould be addressedtothe PermissionsDepartment,&Sons, :Zare,Richard lectures givento the ChemistryDept., CornellUniversity,inthe autumnof 1980as part of their Bakerlectureseries."AWiley-IntersciencePublication"Includesbibliographiesand (NuclearPhysics) I. TitleII. Titie: Baker -471-85892-'287-16204Printed in the UnitedStates of America109876543PREFACEFrommerry-go-roundstospinningtops,angularmomentumhas alwaysfascinatedme,confusedme, and at times filled me abookaboutangularmomentuminquantummechanicsand outoftwenty lectures given to theChemistryDepartment,CornellUniversity, in theautumnof 1980 as part many years Itaughtagraduatecourseon"AdvancedQuantumMechanics"intheChemistryDepartment,StanfordUniversity,and Idistributedthismaterialto myclass in this text isintendedfor aone-semestergraduatecourse. Thechap-