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1、principlesofmodernphysicsprinciplesofmodelrnphysicsNEILASHBYSTANLEYC.MILLERUniversityofColoradoHOLDEN-DAY,INC.SanFranciscoCambridgeLondonAmsterdamoCopyright1970byHolden-Day,Inc.,500SansomeStreetSanFrancisco,CaliforniaAllrightsreserved.Nopartofthisbookmaybereproducedin
2、anyform,bymimeographoranyothermeans,withoutpermissioninwritingfromthepublisher.libraryofCongressCatalogCardNumber:71-l13182ManufacturedintheUnitedStatesofAmericaHOLDEN-DAYSERIESINPHYSICSMcAllisterHullandDavidS.Saxon,EditorsprefaceThisbookisintendedasageneralintroducti
3、ontomodernphysicsforscienceandengineeringstudents.Itiswrittenatalevelwhichpresurnesapriortullyear’scourseinclassicalphysics,andaknowledgeofelementarydifferentialandintegralcalculus.Thematerialdiscussedhereincludesprobability,relativity,quantumme-chanics,atomicphysics,
4、statisticalmechanics,nuclearphysicsandelementaryparticles.Someofthesetop&,suchasstatisticalmechanicsandprobability,areordinarilynotincludedintextbooksatthislevel.However,wehavefeltthatforproperunderstandingofmanytopicsinmodernphysics--suchasquaIlturnme-chanicsanditsap
5、plications--thismaterialisessential.Itisouropilnionthatpresent-dayscienceandengineeringstudentsshouldbeabletoworlkquanti-tativelywiththeconceptsofmodernphysics.Therefore,wehaveattemptedtopresenttheseideasinamannerwhichislogicalandfairlyrigorous.Anumberoftopics,especia
6、llyinquantum1mechanics,arepresentedingreaterdepththaniscustomary.Inmanycases,uniquewaysofpresentationaregivenwhichgreatlysimplifythediscussionoftheretopics.However,fewofthedevelopmentsrequiremoremathematicsthanelementarycalculusandthealgebraofcomplexnurn-bers;inafewpl
7、aces,familiaritywithpartialdifferentiationwillbenecessary.Unifyingconceptswhichhalveimportantapplicationsthroughoutmodernphysics,suchasrelativity,probabilityandthelawsofconservation,havebeenstressed.Almostalltheoreticaldevelopmentsarelinkedtoexamplesanddatatakenfromex
8、periment.Summariesareincludedattheendofeachchapter,aswellasproblemswithwidevariationsindifficulty.Thisbookwaswrittenforusein
