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博学堂讲座预告(第467讲)

来源:浙江工业大学理学院 | 2019-10-17 | 发布:新葡京官网


CarlosA.Benavides-Gallego学术报告

报告题目Title:Chargedparticlemotionandelectromagneticfieldingammaspacetime
报告时间Time:2019年10月22日上午10:00-11:00(周二)
报告地点(Room):二楼教师活动中心
报告摘要(Abstract):

Weconsidertheelectromagneticfieldoccurringinthebackgroundofastatic,axiallysymmetricvacuumsolutionofEinstein'sfieldequationsimmersedinanexternalmagneticfield.


Thesolution,knownastheZipoy-Voorhees,isrelatedtotheSchwarzschildspacetimethrougharealpositiveparametergammathatdescribesitsdeparturefromsphericalsymmetry.


Westudythemotionofcharged andunchargedparticlesinthisspacetimeandparticlecollisioninthevicinityofthesingularsurfaceandcomparewiththecorrespondingresultfor


Schwarzschild.Weshowthatthere


isasharpcontrastwiththeblackholecase,inparticular,intheprolatecase(gamma<1)particlecollisioncanoccurwitharbitrarilyhighcenterofmassenergy.Thismechanism


couldinprincipleallowtodistinguishsuchasourcefromablackhole.
报告人简介(Bio):CarlosA.Benavides-GallegoisaphysicistfromtheNationalUniversityofColombia.In2013,heobtainedanMSc.inastronomyfromthesameuniversity.


Duringtheperiod2013-2017,hewasalectureratKonradLorenzUniversity,CatholicUniversityofColombia,LosLibertadoresUniversity,andEscueladeIngenierosMilitares.


Mrs.Benavides-GallegoiscurrentlyaPh.D.studentatFudanUniversitywhereheworkswithprofessorCosimoBambi.HisresearchasaPh.D.studentisrelatedtogeneralrelativity.


Hisfieldsofinterestareblackholes,alternativetheoriesofgravity,andgravitationallensing.
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