Paul-Dirac

PaulDirac•PaulAdrienMauriceDirac(8August1902–20October1984)wasanEnglishtheoreticalphysicistwhomadefundamentalcontributionstotheearlydevelopmentofbothquantummechanics（量子力学）andquantumelectrodynamics（量子电动力学）.QuantumMechanics•Itisafundamentalbranchofphysicsconcernedwithprocessesinvolving,forexample,atomsandphotons.Insuchprocesses,saidtobequantized,theactionhasbeenobservedtobeonlyinintegermultiplesofthePlanckconstant（普朗克常数）,aphysicalquantitythatisexceedingly,indeedperhapsultimately,small.Thisisutterlyinexplicableinclassicalphysics.Hishonoursanddiscoveries•1933NobelPrizeinphysics•Gravity•Quantumtheory(量子理论）•TheDiracequation（狄拉克方程)•Magneticmonopole（磁单极）Hisearlyyears•PaulAdrienMauriceDiracwasborninBristol,England,andgrewupintheBishopstonareaofthecity.•DiracwaseducatedfirstatBishopRoadPrimarySchool[15]andthenattheall-boysMerchantVenturers'TechnicalCollege.Hisfamily•Hisfather,CharlesAdrienLadislasDirac,wasanimmigrantfromSaint-Maurice,Switzerland,whoworkedinBristolasaFrenchteacher.Hismother,FlorenceHannahDirac,thedaughterofaship'scaptain,wasborninCornwall,England,andworkedasalibrarianattheBristolCentralLibrary.•Healsohadayoungersisterandanoldbrother,whocommittedsuicide.Diracownedthistohisfather.•CharlesandthechildrenwereofficiallySwissnationalsuntiltheybecamenaturalisedon22October1919.Hiseducation•electricalengineeringatattheUniversityofBristol'sengineeringfaculty•StJohn'sCollege,Cambridgein1921•firstclasshonoursBachelorofSciencedegreeinengineering•BachelorofArtsdegreeinmathematicsattheUniversityofBristolHispersonality•Diracwasknownamonghiscolleaguesforhispreciseandtaciturnnature.•Herarelyspoke.Whenhedid,itwasalwayswithextraodinaryprecisionandofenwithdevastatingeffect.•Hecouldrarelyhaveafriendshipwithothers.Andhewas,andremained,anenigma.Thankyou