资源描述:
《PAMDirac.AJP[1]dirac and quantimum》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、P.A.M.DiracandthediscoveryofquantummechanicsaKurtGottfriedLaboratoryforElementaryParticlePhysics,CornellUniversity,Ithaca,NewYork14853Received22June2010;accepted6December2010Diracscontributionstothediscoveryofnonrelativisticquantummechanicsandquantumelectrodynamics,priortohisdiscovery
2、oftherelativisticwaveequation,aredescribed.©2011AmericanAssociationofPhysicsTeachers.DOI:10.1119/1.353663910I.INTRODUCTIONduringDiracsrisetofame,observedthatDiracisratherlikeonesideaofGandhi.Heisquiteindifferenttocold,Diracsmostfamouscontributionstoscience,theDiracdiscomfort,food,….Hei
3、squiteincapableofpretendingtoequationandthepredictionofantimatter,areknowntoallthinkanythingthathedidnotreallythink.Intheageofphysicists.ButmanyphysicistsareunawareofDiracsear-Galileohewouldhavebeenaverycontentedmartyr.lierimportantcontributions:thatheplayedakeyroleintheInaconversationIh
4、adwithNielsBohrin1959aboutdiscoveryanddevelopmentofnonrelativisticquantumme-superconductivity,hesuddenlyremarkedthat11Diracwaschanics,andthattheformulationofquantumelectrodynam-thestrangestmanwhoevervisitedmyinstitute.Iaskedicsisalmostentirelyduetohim.Ithereforerestrictmyselftowhy,andBoh
5、rrespondedthatduringoneofDiracsvisitsIhisworkpriortothepublicationoftheDiracequationinaskedhimwhathewasdoing.Herepliedthathewastrying11928.totakethesquarerootofamatrix,andIthoughttomyselfThisarticledoesnotpretendtobeanoriginalcontributionwhatastrangethingforsuchabrilliantmantobedoing.Not
6、tothehistoryofphysics.ItspurposeistoofferreaderswithlongafterwardtheproofsheetsofhisarticleontheequationaknowledgeofquantummechanicsasketchofDiracsrolearrived,andIrealizedhehadnoteventoldmethathehadinthemostdramaticchapterinthedevelopmentofthebeentryingtotakethesquarerootoftheunitmatrix!
7、Dirac25theory.wassoshythathewantedtorefusetheNobelPrize,butAmongthefoundersofmoderntheoreticalphysics,changedhismindafterRutherfordwarnedhimthatturningitDiracscontributionsandstaturearecomparabletothoseofdownwouldproducefarmorepublicity.BohrandHeisenberg,andsurpassedonlyb